1654410420 has 240 divisors, whose sum is σ = 5919229008. Its totient is φ = 383201280.

The previous prime is 1654410379. The next prime is 1654410467. The reversal of 1654410420 is 240144561.

1654410420 is a `hidden beast` number, since 1 + 654 + 4 + 1 + 0 + 4 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 54730404 + 1599680016 = 7398^2 + 39996^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 355710 + ... + 360330.

Almost surely, 2^1654410420 is an apocalyptic number.

1654410420 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 1654410420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2959614504).

1654410420 is an abundant number, since it is smaller than the sum of its proper divisors (4264818588).

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

1654410420 is a wasteful number, since it uses less digits than its factorization.

1654410420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672 (or 4661 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1654410420 is about 40674.4443108938. Note that the first 3 decimals coincide. The cubic root of 1654410420 is about 1182.7176707909.

Adding to 1654410420 its reverse (240144561), we get a palindrome (1894554981).

The spelling of 1654410420 in words is "one billion, six hundred fifty-four million, four hundred ten thousand, four hundred twenty".