1254662420 has 48 divisors (see below), whose sum is σ = 2999299968. Its totient is φ = 436402560.

The previous prime is 1254662417. The next prime is 1254662429. The reversal of 1254662420 is 242664521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254662429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118919 + ... + 129038.

It is an arithmetic number, because the mean of its divisors is an integer number (62485416).

Almost surely, 2^1254662420 is an apocalyptic number.

1254662420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254662420 is an abundant number, since it is smaller than the sum of its proper divisors (1744637548).

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

1254662420 is a wasteful number, since it uses less digits than its factorization.

1254662420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248000 (or 247998 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1254662420 is about 35421.2142649006. The cubic root of 1254662420 is about 1078.5550005204. Note that the first 3 decimals are identical.

The spelling of 1254662420 in words is "one billion, two hundred fifty-four million, six hundred sixty-two thousand, four hundred twenty".