63863040 has 72 divisors (see below), whose sum is σ = 203974848. Its totient is φ = 17029120.

The previous prime is 63863029. The next prime is 63863053. The reversal of 63863040 is 4036836.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 63862989 and 63863007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4476 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (2832984).

Almost surely, 2^63863040 is an apocalyptic number.

63863040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63863040 is an abundant number, since it is smaller than the sum of its proper divisors (140111808).

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

63863040 is a wasteful number, since it uses less digits than its factorization.

63863040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16655 (or 16641 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 63863040 is about 7991.4354154933. The cubic root of 63863040 is about 399.7144628866.

Adding to 63863040 its reverse (4036836), we get a palindrome (67899876).

The spelling of 63863040 in words is "sixty-three million, eight hundred sixty-three thousand, forty".