10313640 has 48 divisors (see below), whose sum is σ = 33520500. Its totient is φ = 2750208.

The previous prime is 10313621. The next prime is 10313651. The reversal of 10313640 is 4631301.

10313640 is a `hidden beast` number, since 10 + 3 + 13 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10227204 + 86436 = 3198^2 + 294^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13965 + ... + 14684.

Almost surely, 2^10313640 is an apocalyptic number.

10313640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10313640 is an abundant number, since it is smaller than the sum of its proper divisors (23206860).

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

10313640 is a wasteful number, since it uses less digits than its factorization.

10313640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28666 (or 28659 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 10313640 is about 3211.4856375204. The cubic root of 10313640 is about 217.6727125979.

Adding to 10313640 its reverse (4631301), we get a palindrome (14944941).

The spelling of 10313640 in words is "ten million, three hundred thirteen thousand, six hundred forty".