1654195420 has 48 divisors (see below), whose sum is σ = 3639541248. Its totient is φ = 630344000.

The previous prime is 1654195393. The next prime is 1654195429. The reversal of 1654195420 is 245914561.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1654195420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1654195429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108297 + ... + 122623.

It is an arithmetic number, because the mean of its divisors is an integer number (75823776).

Almost surely, 2^1654195420 is an apocalyptic number.

1654195420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1654195420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819770624).

1654195420 is an abundant number, since it is smaller than the sum of its proper divisors (1985345828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1654195420 is a wasteful number, since it uses less digits than its factorization.

1654195420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14610 (or 14608 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1654195420 is about 40671.8012878702. The cubic root of 1654195420 is about 1182.6664349524. Note that the first 3 decimals are identical.

The spelling of 1654195420 in words is "one billion, six hundred fifty-four million, one hundred ninety-five thousand, four hundred twenty".