157209472 has 64 divisors (see below), whose sum is σ = 379023840. Its totient is φ = 63406080.

The previous prime is 157209467. The next prime is 157209473. The reversal of 157209472 is 274902751.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157209473) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10072 + ... + 20392.

Almost surely, 2^157209472 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 157209472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189511920).

157209472 is an abundant number, since it is smaller than the sum of its proper divisors (221814368).

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

157209472 is a wasteful number, since it uses less digits than its factorization.

157209472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10359 (or 10347 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 157209472 is about 12538.3201426666. The cubic root of 157209472 is about 539.7088874432.

The spelling of 157209472 in words is "one hundred fifty-seven million, two hundred nine thousand, four hundred seventy-two".