10249940 has 12 divisors (see below), whose sum is σ = 21524916. Its totient is φ = 4099968.

The previous prime is 10249937. The next prime is 10249951. The reversal of 10249940 is 4994201.

10249940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2421136 + 7828804 = 1556^2 + 2798^2 .

It is a super-2 number, since 2×10249940² = 210122540007200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256229 + ... + 256268.

It is an arithmetic number, because the mean of its divisors is an integer number (1793743).

Almost surely, 2^10249940 is an apocalyptic number.

10249940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10249940 is an abundant number, since it is smaller than the sum of its proper divisors (11274976).

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

10249940 is a wasteful number, since it uses less digits than its factorization.

10249940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512506 (or 512504 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 10249940 is about 3201.5527482770. The cubic root of 10249940 is about 217.2236504358.

The spelling of 10249940 in words is "ten million, two hundred forty-nine thousand, nine hundred forty".