157670072 has 32 divisors (see below), whose sum is σ = 342501600. Its totient is φ = 66645504.

The previous prime is 157670069. The next prime is 157670077. The reversal of 157670072 is 270076751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157670077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15197 + ... + 23372.

It is an arithmetic number, because the mean of its divisors is an integer number (10703175).

Almost surely, 2^157670072 is an apocalyptic number.

It is an amenable number.

157670072 is an abundant number, since it is smaller than the sum of its proper divisors (184831528).

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

157670072 is a wasteful number, since it uses less digits than its factorization.

157670072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38655 (or 38651 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 157670072 is about 12556.6744004931. The cubic root of 157670072 is about 540.2354620145.

The spelling of 157670072 in words is "one hundred fifty-seven million, six hundred seventy thousand, seventy-two".