63456372 has 120 divisors (see below), whose sum is σ = 193793600. Its totient is φ = 18098640.

The previous prime is 63456331. The next prime is 63456383. The reversal of 63456372 is 27365436.

It is a super-2 number, since 2×63456372² = 8053422294804768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 110847 + ... + 111417.

Almost surely, 2^63456372 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 63456372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96896800).

63456372 is an abundant number, since it is smaller than the sum of its proper divisors (130337228).

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

63456372 is a wasteful number, since it uses less digits than its factorization.

63456372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 583 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 63456372 is about 7965.9507907092. The cubic root of 63456372 is about 398.8642197270.

The spelling of 63456372 in words is "sixty-three million, four hundred fifty-six thousand, three hundred seventy-two".