10031916 has 12 divisors (see below), whose sum is σ = 23407832. Its totient is φ = 3343968.

The previous prime is 10031911. The next prime is 10031929. The reversal of 10031916 is 61913001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 10031892 and 10031901.

It is not an unprimeable number, because it can be changed into a prime (10031911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417985 + ... + 418008.

Almost surely, 2^10031916 is an apocalyptic number.

It is an amenable number.

10031916 is an abundant number, since it is smaller than the sum of its proper divisors (13375916).

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

10031916 is a wasteful number, since it uses less digits than its factorization.

10031916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836000 (or 835998 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 10031916 is about 3167.3200027784. The cubic root of 10031916 is about 215.6724287183.

Adding to 10031916 its reverse (61913001), we get a palindrome (71944917).

The spelling of 10031916 in words is "ten million, thirty-one thousand, nine hundred sixteen".