63423660 has 48 divisors (see below), whose sum is σ = 178538976. Its totient is φ = 16822272.

The previous prime is 63423637. The next prime is 63423697. The reversal of 63423660 is 6632436.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8842 + ... + 14318.

It is an arithmetic number, because the mean of its divisors is an integer number (3719562).

Almost surely, 2^63423660 is an apocalyptic number.

63423660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63423660 is an abundant number, since it is smaller than the sum of its proper divisors (115115316).

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

63423660 is a wasteful number, since it uses less digits than its factorization.

63423660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682 (or 5680 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 63423660 is about 7963.8972871327. The cubic root of 63423660 is about 398.7956692745.

The spelling of 63423660 in words is "sixty-three million, four hundred twenty-three thousand, six hundred sixty".