64342528 has 20 divisors (see below), whose sum is σ = 128560410. Its totient is φ = 32171008.

The previous prime is 64342517. The next prime is 64342529. The reversal of 64342528 is 82524346.

It can be written as a sum of positive squares in only one way, i.e., 51151104 + 13191424 = 7152^2 + 3632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64342493 and 64342502.

It is not an unprimeable number, because it can be changed into a prime (64342529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62323 + ... + 63346.

Almost surely, 2^64342528 is an apocalyptic number.

It is an amenable number.

64342528 is a deficient number, since it is larger than the sum of its proper divisors (64217882).

64342528 is an equidigital number, since it uses as much as digits as its factorization.

64342528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125687 (or 125671 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 64342528 is about 8021.3794324916. The cubic root of 64342528 is about 400.7123307094.

The spelling of 64342528 in words is "sixty-four million, three hundred forty-two thousand, five hundred twenty-eight".