64420524 has 36 divisors (see below), whose sum is σ = 186104464. Its totient is φ = 18405792.

The previous prime is 64420519. The next prime is 64420537. The reversal of 64420524 is 42502446.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127567 + ... + 128070.

Almost surely, 2^64420524 is an apocalyptic number.

It is an amenable number.

64420524 is an abundant number, since it is smaller than the sum of its proper divisors (121683940).

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

64420524 is a wasteful number, since it uses less digits than its factorization.

64420524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255654 (or 255649 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 64420524 is about 8026.2397173272. The cubic root of 64420524 is about 400.8741797991.

The spelling of 64420524 in words is "sixty-four million, four hundred twenty thousand, five hundred twenty-four".