10399942 has 24 divisors (see below), whose sum is σ = 18445968. Its totient is φ = 4307760.

The previous prime is 10399931. The next prime is 10399957. The reversal of 10399942 is 24999301.

10399942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 13068 + ... + 13840.

It is an arithmetic number, because the mean of its divisors is an integer number (768582).

Almost surely, 2^10399942 is an apocalyptic number.

10399942 is a deficient number, since it is larger than the sum of its proper divisors (8046026).

10399942 is an equidigital number, since it uses as much as digits as its factorization.

10399942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 10399942 is about 3224.8941067886. The cubic root of 10399942 is about 218.2781708372.

The spelling of 10399942 in words is "ten million, three hundred ninety-nine thousand, nine hundred forty-two".