64383438 has 32 divisors (see below), whose sum is σ = 154909440. Its totient is φ = 17426880.

The previous prime is 64383433. The next prime is 64383443. The reversal of 64383438 is 83438346.

It is an interprime number because it is at equal distance from previous prime (64383433) and next prime (64383443).

It is a junction number, because it is equal to n+sod(n) for n = 64383396 and 64383405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64383433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39543 + ... + 41138.

It is an arithmetic number, because the mean of its divisors is an integer number (4840920).

Almost surely, 2^64383438 is an apocalyptic number.

64383438 is an abundant number, since it is smaller than the sum of its proper divisors (90526002).

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

64383438 is a wasteful number, since it uses less digits than its factorization.

64383438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80712.

The product of its digits is 165888, while the sum is 39.

The square root of 64383438 is about 8023.9290874234. The cubic root of 64383438 is about 400.7972391354.

The spelling of 64383438 in words is "sixty-four million, three hundred eighty-three thousand, four hundred thirty-eight".