63465444 has 60 divisors (see below), whose sum is σ = 189619584. Its totient is φ = 18132336.

The previous prime is 63465443. The next prime is 63465449. The reversal of 63465444 is 44456436.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 63465399 and 63465408.

It is not an unprimeable number, because it can be changed into a prime (63465443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11724 + ... + 16259.

Almost surely, 2^63465444 is an apocalyptic number.

It is an amenable number.

63465444 is an abundant number, since it is smaller than the sum of its proper divisors (126154140).

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

63465444 is a wasteful number, since it uses less digits than its factorization.

63465444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28006 (or 27995 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 63465444 is about 7966.5201939115. The cubic root of 63465444 is about 398.8832266114.

The spelling of 63465444 in words is "sixty-three million, four hundred sixty-five thousand, four hundred forty-four".