157296720 has 80 divisors (see below), whose sum is σ = 557285760. Its totient is φ = 35953152.

The previous prime is 157296719. The next prime is 157296761. The reversal of 157296720 is 27692751.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45135 + ... + 48494.

It is an arithmetic number, because the mean of its divisors is an integer number (6966072).

Almost surely, 2^157296720 is an apocalyptic number.

157296720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157296720 is an abundant number, since it is smaller than the sum of its proper divisors (399989040).

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

157296720 is a wasteful number, since it uses less digits than its factorization.

157296720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93652 (or 93646 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 157296720 is about 12541.7989140314. The cubic root of 157296720 is about 539.8087113958.

The spelling of 157296720 in words is "one hundred fifty-seven million, two hundred ninety-six thousand, seven hundred twenty".