63886240 has 48 divisors (see below), whose sum is σ = 164656800. Its totient is φ = 23230720.

The previous prime is 63886231. The next prime is 63886243. The reversal of 63886240 is 4268836.

It is a super-2 number, since 2×63886240² = 8162903322675200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63886240.

It is not an unprimeable number, because it can be changed into a prime (63886243) 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, 16390 + ... + 19909.

It is an arithmetic number, because the mean of its divisors is an integer number (3430350).

Almost surely, 2^63886240 is an apocalyptic number.

It is an amenable number.

63886240 is an abundant number, since it is smaller than the sum of its proper divisors (100770560).

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

63886240 is a wasteful number, since it uses less digits than its factorization.

63886240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36325 (or 36317 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 63886240 is about 7992.8868376826. The cubic root of 63886240 is about 399.7628594387.

The spelling of 63886240 in words is "sixty-three million, eight hundred eighty-six thousand, two hundred forty".