63115380 has 72 divisors (see below), whose sum is σ = 197643264. Its totient is φ = 16286400.

The previous prime is 63115369. The next prime is 63115399. The reversal of 63115380 is 8351136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76 + ... + 11235.

Almost surely, 2^63115380 is an apocalyptic number.

63115380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63115380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98821632).

63115380 is an abundant number, since it is smaller than the sum of its proper divisors (134527884).

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

63115380 is a wasteful number, since it uses less digits than its factorization.

63115380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11357 (or 11352 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 63115380 is about 7944.5188652303. The cubic root of 63115380 is about 398.1484846170.

The spelling of 63115380 in words is "sixty-three million, one hundred fifteen thousand, three hundred eighty".