157798704 has 80 divisors (see below), whose sum is σ = 473580800. Its totient is φ = 44340480.

The previous prime is 157798651. The next prime is 157798717. The reversal of 157798704 is 407897751.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16647 + ... + 24345.

It is an arithmetic number, because the mean of its divisors is an integer number (5919760).

Almost surely, 2^157798704 is an apocalyptic number.

157798704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157798704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236790400).

157798704 is an abundant number, since it is smaller than the sum of its proper divisors (315782096).

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

157798704 is a wasteful number, since it uses less digits than its factorization.

157798704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778 (or 7772 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 48.

The square root of 157798704 is about 12561.7954130769. The cubic root of 157798704 is about 540.3823355416.

The spelling of 157798704 in words is "one hundred fifty-seven million, seven hundred ninety-eight thousand, seven hundred four".