63432720 has 240 divisors, whose sum is σ = 238859712. Its totient is φ = 15552000.

The previous prime is 63432713. The next prime is 63432739. The reversal of 63432720 is 2723436.

63432720 is a `hidden beast` number, since 634 + 3 + 2 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252595 + ... + 252845.

Almost surely, 2^63432720 is an apocalyptic number.

63432720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63432720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119429856).

63432720 is an abundant number, since it is smaller than the sum of its proper divisors (175426992).

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

63432720 is a wasteful number, since it uses less digits than its factorization.

63432720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 63432720 is about 7964.4660838000. The cubic root of 63432720 is about 398.8146575445.

The spelling of 63432720 in words is "sixty-three million, four hundred thirty-two thousand, seven hundred twenty".