64534464 has 84 divisors (see below), whose sum is σ = 186298840. Its totient is φ = 21358080.

The previous prime is 64534453. The next prime is 64534487. The reversal of 64534464 is 46443546.

64534464 is a `hidden beast` number, since 64 + 534 + 4 + 64 = 666.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103947 + ... + 104565.

Almost surely, 2^64534464 is an apocalyptic number.

64534464 is a gapful number since it is divisible by the number (64) 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 64534464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93149420).

64534464 is an abundant number, since it is smaller than the sum of its proper divisors (121764376).

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

64534464 is a wasteful number, since it uses less digits than its factorization.

64534464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 805 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 64534464 is about 8033.3345504840. The cubic root of 64534464 is about 401.1103814471.

The spelling of 64534464 in words is "sixty-four million, five hundred thirty-four thousand, four hundred sixty-four".