49631690 has 16 divisors (see below), whose sum is σ = 89556840. Its totient is φ = 19803840.

The previous prime is 49631663. The next prime is 49631693. The reversal of 49631690 is 9613694.

It can be written as a sum of positive squares in 4 ways, for example, as 9042049 + 40589641 = 3007^2 + 6371^2 .

It is a super-2 number, since 2×49631690² = 4926609304512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49631693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685 + ... + 10104.

Almost surely, 2^49631690 is an apocalyptic number.

49631690 is a deficient number, since it is larger than the sum of its proper divisors (39925150).

49631690 is a wasteful number, since it uses less digits than its factorization.

49631690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12217.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 49631690 is about 7044.9762242324. The cubic root of 49631690 is about 367.4963425369.

The spelling of 49631690 in words is "forty-nine million, six hundred thirty-one thousand, six hundred ninety".