63901240 has 32 divisors (see below), whose sum is σ = 154838880. Its totient is φ = 23594112.

The previous prime is 63901223. The next prime is 63901259. The reversal of 63901240 is 4210936.

It is a zygodrome in base 2.

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, 60924 + ... + 61963.

It is an arithmetic number, because the mean of its divisors is an integer number (4838715).

Almost surely, 2^63901240 is an apocalyptic number.

It is an amenable number.

63901240 is an abundant number, since it is smaller than the sum of its proper divisors (90937640).

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

63901240 is a wasteful number, since it uses less digits than its factorization.

63901240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122911 (or 122907 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 63901240 is about 7993.8251169262. The cubic root of 63901240 is about 399.7941440765.

The spelling of 63901240 in words is "sixty-three million, nine hundred one thousand, two hundred forty".