63994360 has 32 divisors (see below), whose sum is σ = 144799200. Its totient is φ = 25453440.

The previous prime is 63994331. The next prime is 63994367. The reversal of 63994360 is 6349936.

It is a super-2 number, since 2×63994360² = 8190556223619200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63994367) 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, 2821 + ... + 11659.

It is an arithmetic number, because the mean of its divisors is an integer number (4524975).

Almost surely, 2^63994360 is an apocalyptic number.

It is an amenable number.

63994360 is an abundant number, since it is smaller than the sum of its proper divisors (80804840).

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

63994360 is a wasteful number, since it uses less digits than its factorization.

63994360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9031 (or 9027 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 63994360 is about 7999.6474922336. The cubic root of 63994360 is about 399.9882496548.

The spelling of 63994360 in words is "sixty-three million, nine hundred ninety-four thousand, three hundred sixty".