64455432 has 64 divisors (see below), whose sum is σ = 171590400. Its totient is φ = 20106240.

The previous prime is 64455427. The next prime is 64455451. The reversal of 64455432 is 23455446.

It is a junction number, because it is equal to n+sod(n) for n = 64455393 and 64455402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97182 + ... + 97842.

It is an arithmetic number, because the mean of its divisors is an integer number (2681100).

Almost surely, 2^64455432 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 64455432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85795200).

64455432 is an abundant number, since it is smaller than the sum of its proper divisors (107134968).

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

64455432 is a wasteful number, since it uses less digits than its factorization.

64455432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 922 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 64455432 is about 8028.4140401452. The cubic root of 64455432 is about 400.9465748897.

The spelling of 64455432 in words is "sixty-four million, four hundred fifty-five thousand, four hundred thirty-two".