632615540 has 12 divisors (see below), whose sum is σ = 1328492676. Its totient is φ = 253046208.

The previous prime is 632615537. The next prime is 632615563. The reversal of 632615540 is 45516236.

It can be written as a sum of positive squares in 2 ways, for example, as 469848976 + 162766564 = 21676^2 + 12758^2 .

It is a junction number, because it is equal to n+sod(n) for n = 632615497 and 632615506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15815369 + ... + 15815408.

It is an arithmetic number, because the mean of its divisors is an integer number (110707723).

Almost surely, 2^632615540 is an apocalyptic number.

It is an amenable number.

632615540 is an abundant number, since it is smaller than the sum of its proper divisors (695877136).

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

632615540 is a wasteful number, since it uses less digits than its factorization.

632615540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31630786 (or 31630784 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 632615540 is about 25151.8496337745. The cubic root of 632615540 is about 858.4466009026.

The spelling of 632615540 in words is "six hundred thirty-two million, six hundred fifteen thousand, five hundred forty".