63924540 has 24 divisors (see below), whose sum is σ = 178988880. Its totient is φ = 17046528.

The previous prime is 63924533. The next prime is 63924557. The reversal of 63924540 is 4542936.

63924540 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

63924540 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532645 + ... + 532764.

It is an arithmetic number, because the mean of its divisors is an integer number (7457870).

Almost surely, 2^63924540 is an apocalyptic number.

63924540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63924540 is an abundant number, since it is smaller than the sum of its proper divisors (115064340).

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

63924540 is a wasteful number, since it uses less digits than its factorization.

63924540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065421 (or 1065419 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 63924540 is about 7995.2823589915. The cubic root of 63924540 is about 399.8427298400.

The spelling of 63924540 in words is "sixty-three million, nine hundred twenty-four thousand, five hundred forty".