157447424 has 36 divisors (see below), whose sum is σ = 321611136. Its totient is φ = 76887552.

The previous prime is 157447379. The next prime is 157447439. The reversal of 157447424 is 424744751.

It is a happy number.

157447424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3857 + ... + 18159.

Almost surely, 2^157447424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157447424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160805568).

157447424 is an abundant number, since it is smaller than the sum of its proper divisors (164163712).

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

157447424 is an equidigital number, since it uses as much as digits as its factorization.

157447424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14362 (or 14348 counting only the distinct ones).

The product of its digits is 125440, while the sum is 38.

The square root of 157447424 is about 12547.8055451939. The cubic root of 157447424 is about 539.9810510040.

The spelling of 157447424 in words is "one hundred fifty-seven million, four hundred forty-seven thousand, four hundred twenty-four".