63157340 has 48 divisors (see below), whose sum is σ = 136442880. Its totient is φ = 24548160.

The previous prime is 63157321. The next prime is 63157357. The reversal of 63157340 is 4375136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111899 + ... + 112461.

It is an arithmetic number, because the mean of its divisors is an integer number (2842560).

Almost surely, 2^63157340 is an apocalyptic number.

It is an amenable number.

63157340 is an abundant number, since it is smaller than the sum of its proper divisors (73285540).

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

63157340 is a wasteful number, since it uses less digits than its factorization.

63157340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 63157340 is about 7947.1592408860. The cubic root of 63157340 is about 398.2366966586.

The spelling of 63157340 in words is "sixty-three million, one hundred fifty-seven thousand, three hundred forty".