63940244 has 48 divisors (see below), whose sum is σ = 123950400. Its totient is φ = 28740096.

The previous prime is 63940243. The next prime is 63940267. The reversal of 63940244 is 44204936.

It is a self number, because there is not a number n which added to its sum of digits gives 63940244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63940243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147452 + ... + 147884.

It is an arithmetic number, because the mean of its divisors is an integer number (2582300).

Almost surely, 2^63940244 is an apocalyptic number.

It is an amenable number.

63940244 is a deficient number, since it is larger than the sum of its proper divisors (60010156).

63940244 is a wasteful number, since it uses less digits than its factorization.

63940244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 63940244 is about 7996.2643778204. The cubic root of 63940244 is about 399.8754695678.

The spelling of 63940244 in words is "sixty-three million, nine hundred forty thousand, two hundred forty-four".