64332774 has 48 divisors (see below), whose sum is σ = 154664640. Its totient is φ = 19160880.

The previous prime is 64332769. The next prime is 64332799. The reversal of 64332774 is 47723346.

It is a happy number.

64332774 is a `hidden beast` number, since 643 + 3 + 2 + 7 + 7 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8929 + ... + 14435.

It is an arithmetic number, because the mean of its divisors is an integer number (3222180).

Almost surely, 2^64332774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64332774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77332320).

64332774 is an abundant number, since it is smaller than the sum of its proper divisors (90331866).

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

64332774 is a wasteful number, since it uses less digits than its factorization.

64332774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585 (or 5582 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 64332774 is about 8020.7714092848. The cubic root of 64332774 is about 400.6920810357.

The spelling of 64332774 in words is "sixty-four million, three hundred thirty-two thousand, seven hundred seventy-four".