931630940 has 48 divisors (see below), whose sum is σ = 2074312800. Its totient is φ = 350257152.

The previous prime is 931630937. The next prime is 931630943. The reversal of 931630940 is 49036139.

It is an interprime number because it is at equal distance from previous prime (931630937) and next prime (931630943).

It is a self number, because there is not a number n which added to its sum of digits gives 931630940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (931630943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345116 + ... + 347804.

It is an arithmetic number, because the mean of its divisors is an integer number (43214850).

Almost surely, 2^931630940 is an apocalyptic number.

It is an amenable number.

931630940 is an abundant number, since it is smaller than the sum of its proper divisors (1142681860).

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

931630940 is a wasteful number, since it uses less digits than its factorization.

931630940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734 (or 3732 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 931630940 is about 30522.6299653225. The cubic root of 931630940 is about 976.6702696203.

The spelling of 931630940 in words is "nine hundred thirty-one million, six hundred thirty thousand, nine hundred forty".