157699476 has 144 divisors (see below), whose sum is σ = 458115840. Its totient is φ = 45308160.

The previous prime is 157699459. The next prime is 157699483. The reversal of 157699476 is 674996751.

157699476 is a `hidden beast` number, since 15 + 76 + 99 + 476 = 666.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 688530 + ... + 688758.

It is an arithmetic number, because the mean of its divisors is an integer number (3181360).

Almost surely, 2^157699476 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 157699476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229057920).

157699476 is an abundant number, since it is smaller than the sum of its proper divisors (300416364).

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

157699476 is a wasteful number, since it uses less digits than its factorization.

157699476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 329 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 157699476 is about 12557.8451973259. The cubic root of 157699476 is about 540.2690428879.

The spelling of 157699476 in words is "one hundred fifty-seven million, six hundred ninety-nine thousand, four hundred seventy-six".