63880380 has 48 divisors (see below), whose sum is σ = 198740640. Its totient is φ = 17034624.

The previous prime is 63880351. The next prime is 63880381. The reversal of 63880380 is 8308836.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63880381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58609 + ... + 59688.

It is an arithmetic number, because the mean of its divisors is an integer number (4140430).

Almost surely, 2^63880380 is an apocalyptic number.

63880380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63880380 is an abundant number, since it is smaller than the sum of its proper divisors (134860260).

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

63880380 is a wasteful number, since it uses less digits than its factorization.

63880380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118315 (or 118307 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 63880380 is about 7992.5202533369. The cubic root of 63880380 is about 399.7506362433.

It can be divided in two parts, 638 and 80380, that added together give a palindrome (81018).

The spelling of 63880380 in words is "sixty-three million, eight hundred eighty thousand, three hundred eighty".