63445464 has 32 divisors (see below), whose sum is σ = 176238000. Its totient is φ = 21148416.

The previous prime is 63445463. The next prime is 63445489. The reversal of 63445464 is 46454436.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63445463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146649 + ... + 147080.

Almost surely, 2^63445464 is an apocalyptic number.

It is an amenable number.

63445464 is an abundant number, since it is smaller than the sum of its proper divisors (112792536).

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

63445464 is a wasteful number, since it uses less digits than its factorization.

63445464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293744 (or 293734 counting only the distinct ones).

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

The square root of 63445464 is about 7965.2660972500. The cubic root of 63445464 is about 398.8413638125.

The spelling of 63445464 in words is "sixty-three million, four hundred forty-five thousand, four hundred sixty-four".