63728260 has 48 divisors (see below), whose sum is σ = 138801600. Its totient is φ = 24562304.

The previous prime is 63728243. The next prime is 63728293. The reversal of 63728260 is 6282736.

It is a super-2 number, since 2×63728260² = 8122582245255200, which contains 22 as substring.

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, 62031 + ... + 63049.

It is an arithmetic number, because the mean of its divisors is an integer number (2891700).

Almost surely, 2^63728260 is an apocalyptic number.

It is an amenable number.

63728260 is an abundant number, since it is smaller than the sum of its proper divisors (75073340).

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

63728260 is a wasteful number, since it uses less digits than its factorization.

63728260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 63728260 is about 7982.9981836400. The cubic root of 63728260 is about 399.4330718608.

The spelling of 63728260 in words is "sixty-three million, seven hundred twenty-eight thousand, two hundred sixty".