64504446 has 16 divisors (see below), whose sum is σ = 130564224. Its totient is φ = 21242264.

The previous prime is 64504421. The next prime is 64504463. The reversal of 64504446 is 64440546.

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, 64266 + ... + 65261.

It is an arithmetic number, because the mean of its divisors is an integer number (8160264).

Almost surely, 2^64504446 is an apocalyptic number.

64504446 is an abundant number, since it is smaller than the sum of its proper divisors (66059778).

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

64504446 is a wasteful number, since it uses less digits than its factorization.

64504446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129615.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 64504446 is about 8031.4659932045. The cubic root of 64504446 is about 401.0481800639.

It can be divided in two parts, 64 and 504446, that added together give a triangular number (504510 = T₁₀₀₄).

The spelling of 64504446 in words is "sixty-four million, five hundred four thousand, four hundred forty-six".