2493931 has 6 divisors (see below), whose sum is σ = 2741396. Its totient is φ = 2267100.

The previous prime is 2493929. The next prime is 2493937. The reversal of 2493931 is 1393942.

It is not a de Polignac number, because 2493931 - 2¹ = 2493929 is a prime.

It is a super-2 number, since 2×2493931² = 12439383665522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2493893 and 2493902.

It is not an unprimeable number, because it can be changed into a prime (2493937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10185 + ... + 10426.

2^2493931 is an apocalyptic number.

2493931 is a deficient number, since it is larger than the sum of its proper divisors (247465).

2493931 is a wasteful number, since it uses less digits than its factorization.

2493931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20633 (or 20622 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 2493931 is about 1579.2184776021. The cubic root of 2493931 is about 135.6109665023.

The spelling of 2493931 in words is "two million, four hundred ninety-three thousand, nine hundred thirty-one".