63240928 has 24 divisors (see below), whose sum is σ = 125654760. Its totient is φ = 31328640.

The previous prime is 63240923. The next prime is 63240973. The reversal of 63240928 is 82904236.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63240893 and 63240902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63240923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5578 + ... + 12553.

It is an arithmetic number, because the mean of its divisors is an integer number (5235615).

Almost surely, 2^63240928 is an apocalyptic number.

It is an amenable number.

63240928 is a deficient number, since it is larger than the sum of its proper divisors (62413832).

63240928 is a wasteful number, since it uses less digits than its factorization.

63240928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18250 (or 18242 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 63240928 is about 7952.4164880871. The cubic root of 63240928 is about 398.4123064106.

The spelling of 63240928 in words is "sixty-three million, two hundred forty thousand, nine hundred twenty-eight".