157702394 has 16 divisors (see below), whose sum is σ = 257038080. Its totient is φ = 72290880.

The previous prime is 157702381. The next prime is 157702417. The reversal of 157702394 is 493207751.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65759 + ... + 68114.

It is an arithmetic number, because the mean of its divisors is an integer number (16064880).

Almost surely, 2^157702394 is an apocalyptic number.

157702394 is a deficient number, since it is larger than the sum of its proper divisors (99335686).

157702394 is a wasteful number, since it uses less digits than its factorization.

157702394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133925.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 157702394 is about 12557.9613791411. The cubic root of 157702394 is about 540.2723751656.

The spelling of 157702394 in words is "one hundred fifty-seven million, seven hundred two thousand, three hundred ninety-four".