63240904 has 8 divisors (see below), whose sum is σ = 118576710. Its totient is φ = 31620448.

The previous prime is 63240893. The next prime is 63240913. The reversal of 63240904 is 40904236.

It can be written as a sum of positive squares in only one way, i.e., 49028004 + 14212900 = 7002^2 + 3770^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3952549 + ... + 3952564.

Almost surely, 2^63240904 is an apocalyptic number.

It is an amenable number.

63240904 is a deficient number, since it is larger than the sum of its proper divisors (55335806).

63240904 is a wasteful number, since it uses less digits than its factorization.

63240904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7905119 (or 7905115 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 63240904 is about 7952.4149791117. The cubic root of 63240904 is about 398.4122560113.

The spelling of 63240904 in words is "sixty-three million, two hundred forty thousand, nine hundred four".