157477420 has 12 divisors (see below), whose sum is σ = 330702624. Its totient is φ = 62990960.

The previous prime is 157477393. The next prime is 157477451. The reversal of 157477420 is 24774751.

It is a super-4 number, since 4×157477420⁴ (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157477420.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3936916 + ... + 3936955.

It is an arithmetic number, because the mean of its divisors is an integer number (27558552).

Almost surely, 2^157477420 is an apocalyptic number.

157477420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157477420 is an abundant number, since it is smaller than the sum of its proper divisors (173225204).

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

157477420 is a wasteful number, since it uses less digits than its factorization.

157477420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873880 (or 7873878 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 157477420 is about 12549.0007570324. Note that the first 3 decimals coincide. The cubic root of 157477420 is about 540.0153402135.

The spelling of 157477420 in words is "one hundred fifty-seven million, four hundred seventy-seven thousand, four hundred twenty".