63874540 has 24 divisors (see below), whose sum is σ = 136669680. Its totient is φ = 25067328.

The previous prime is 63874529. The next prime is 63874571. The reversal of 63874540 is 4547836.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 63874540.

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, 29070 + ... + 31189.

It is an arithmetic number, because the mean of its divisors is an integer number (5694570).

Almost surely, 2^63874540 is an apocalyptic number.

It is an amenable number.

63874540 is an abundant number, since it is smaller than the sum of its proper divisors (72795140).

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

63874540 is a wasteful number, since it uses less digits than its factorization.

63874540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60321 (or 60319 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 63874540 is about 7992.1549034037. The cubic root of 63874540 is about 399.7384540215.

The spelling of 63874540 in words is "sixty-three million, eight hundred seventy-four thousand, five hundred forty".