632642690 has 16 divisors (see below), whose sum is σ = 1139045760. Its totient is φ = 252992880.

The previous prime is 632642657. The next prime is 632642711. The reversal of 632642690 is 96246236.

It is a super-2 number, since 2×632642690² = 800473546420872200, which contains 22 as substring.

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, 65045 + ... + 74135.

It is an arithmetic number, because the mean of its divisors is an integer number (71190360).

Almost surely, 2^632642690 is an apocalyptic number.

632642690 is a deficient number, since it is larger than the sum of its proper divisors (506403070).

632642690 is a wasteful number, since it uses less digits than its factorization.

632642690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16057.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 632642690 is about 25152.3893497218. The cubic root of 632642690 is about 858.4588813954.

The spelling of 632642690 in words is "six hundred thirty-two million, six hundred forty-two thousand, six hundred ninety".