157435420 has 12 divisors (see below), whose sum is σ = 330614424. Its totient is φ = 62974160.

The previous prime is 157435417. The next prime is 157435457. The reversal of 157435420 is 24534751.

It is a super-2 number, since 2×157435420² = 49571822941152800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3935866 + ... + 3935905.

It is an arithmetic number, because the mean of its divisors is an integer number (27551202).

Almost surely, 2^157435420 is an apocalyptic number.

157435420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157435420 is an abundant number, since it is smaller than the sum of its proper divisors (173179004).

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

157435420 is a wasteful number, since it uses less digits than its factorization.

157435420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871780 (or 7871778 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 157435420 is about 12547.3272054251. The cubic root of 157435420 is about 539.9673276986.

The spelling of 157435420 in words is "one hundred fifty-seven million, four hundred thirty-five thousand, four hundred twenty".