63940356 has 36 divisors (see below), whose sum is σ = 162175104. Its totient is φ = 21241200.

The previous prime is 63940333. The next prime is 63940379. The reversal of 63940356 is 65304936.

It is an interprime number because it is at equal distance from previous prime (63940333) and next prime (63940379).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 63940356.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8341 + ... + 14051.

It is an arithmetic number, because the mean of its divisors is an integer number (4504864).

Almost surely, 2^63940356 is an apocalyptic number.

It is an amenable number.

63940356 is an abundant number, since it is smaller than the sum of its proper divisors (98234748).

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

63940356 is a wasteful number, since it uses less digits than its factorization.

63940356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032 (or 6027 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 63940356 is about 7996.2713810876. The cubic root of 63940356 is about 399.8757030463.

The spelling of 63940356 in words is "sixty-three million, nine hundred forty thousand, three hundred fifty-six".