157963844 has 6 divisors (see below), whose sum is σ = 276436734. Its totient is φ = 78981920.

The previous prime is 157963843. The next prime is 157963867. The reversal of 157963844 is 448369751.

It can be written as a sum of positive squares in only one way, i.e., 157803844 + 160000 = 12562^2 + 400^2 .

It is a super-2 number, since 2×157963844² = 49905152022512672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157963843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19745477 + ... + 19745484.

It is an arithmetic number, because the mean of its divisors is an integer number (46072789).

Almost surely, 2^157963844 is an apocalyptic number.

It is an amenable number.

157963844 is a deficient number, since it is larger than the sum of its proper divisors (118472890).

157963844 is a wasteful number, since it uses less digits than its factorization.

157963844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39490965 (or 39490963 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 157963844 is about 12568.3667992305. The cubic root of 157963844 is about 540.5707773656.

The spelling of 157963844 in words is "one hundred fifty-seven million, nine hundred sixty-three thousand, eight hundred forty-four".