64532838 has 16 divisors (see below), whose sum is σ = 129386160. Its totient is φ = 21457536.

The previous prime is 64532821. The next prime is 64532849. The reversal of 64532838 is 83823546.

It is a junction number, because it is equal to n+sod(n) for n = 64532796 and 64532805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10695 + ... + 15602.

It is an arithmetic number, because the mean of its divisors is an integer number (8086635).

Almost surely, 2^64532838 is an apocalyptic number.

64532838 is an abundant number, since it is smaller than the sum of its proper divisors (64853322).

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

64532838 is a wasteful number, since it uses less digits than its factorization.

64532838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26711.

The product of its digits is 138240, while the sum is 39.

The square root of 64532838 is about 8033.2333465423. The cubic root of 64532838 is about 401.1070126479.

The spelling of 64532838 in words is "sixty-four million, five hundred thirty-two thousand, eight hundred thirty-eight".