63157432 has 32 divisors (see below), whose sum is σ = 127890000. Its totient is φ = 29067264.

The previous prime is 63157429. The next prime is 63157433. The reversal of 63157432 is 23475136.

It is a super-2 number, since 2×63157432² = 7977722433669248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63157394 and 63157403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63157433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51288 + ... + 52504.

Almost surely, 2^63157432 is an apocalyptic number.

It is an amenable number.

63157432 is an abundant number, since it is smaller than the sum of its proper divisors (64732568).

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

63157432 is a wasteful number, since it uses less digits than its factorization.

63157432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735 (or 1731 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 63157432 is about 7947.1650291157. The cubic root of 63157432 is about 398.2368900262.

The spelling of 63157432 in words is "sixty-three million, one hundred fifty-seven thousand, four hundred thirty-two".