13902992 has 10 divisors (see below), whose sum is σ = 26937078. Its totient is φ = 6951488.

The previous prime is 13902989. The next prime is 13902997. The reversal of 13902992 is 29920931.

It can be written as a sum of positive squares in only one way, i.e., 7929856 + 5973136 = 2816^2 + 2444^2 .

It is not an unprimeable number, because it can be changed into a prime (13902997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434453 + ... + 434484.

Almost surely, 2^13902992 is an apocalyptic number.

It is an amenable number.

13902992 is a deficient number, since it is larger than the sum of its proper divisors (13034086).

13902992 is an equidigital number, since it uses as much as digits as its factorization.

13902992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868945 (or 868939 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13902992 is about 3728.6716133229. The cubic root of 13902992 is about 240.4562616853.

The spelling of 13902992 in words is "thirteen million, nine hundred two thousand, nine hundred ninety-two".