13992340 has 12 divisors (see below), whose sum is σ = 29383956. Its totient is φ = 5596928.

The previous prime is 13992337. The next prime is 13992353. The reversal of 13992340 is 4329931.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 9847044 = 2036^2 + 3138^2 .

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, 349789 + ... + 349828.

It is an arithmetic number, because the mean of its divisors is an integer number (2448663).

Almost surely, 2^13992340 is an apocalyptic number.

13992340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13992340 is an abundant number, since it is smaller than the sum of its proper divisors (15391616).

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

13992340 is a wasteful number, since it uses less digits than its factorization.

13992340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699626 (or 699624 counting only the distinct ones).

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

The square root of 13992340 is about 3740.6336361638. The cubic root of 13992340 is about 240.9702619941.

The spelling of 13992340 in words is "thirteen million, nine hundred ninety-two thousand, three hundred forty".