634949492 has 12 divisors (see below), whose sum is σ = 1111829796. Its totient is φ = 317283840.

The previous prime is 634949443. The next prime is 634949501. The reversal of 634949492 is 294949436.

It can be written as a sum of positive squares in 2 ways, for example, as 129868816 + 505080676 = 11396^2 + 22474^2 .

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 634949492.

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, 40109 + ... + 53652.

It is an arithmetic number, because the mean of its divisors is an integer number (92652483).

Almost surely, 2^634949492 is an apocalyptic number.

It is an amenable number.

634949492 is a deficient number, since it is larger than the sum of its proper divisors (476880304).

634949492 is a wasteful number, since it uses less digits than its factorization.

634949492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95458 (or 95456 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 50.

The square root of 634949492 is about 25198.2041423590. The cubic root of 634949492 is about 859.5010139434.

The spelling of 634949492 in words is "six hundred thirty-four million, nine hundred forty-nine thousand, four hundred ninety-two".