13831090 has 32 divisors (see below), whose sum is σ = 30643200. Its totient is φ = 4377024.

The previous prime is 13831067. The next prime is 13831093. The reversal of 13831090 is 9013831.

13831090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13831093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6690 + ... + 8509.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^13831090 is an apocalyptic number.

13831090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13831090 is an abundant number, since it is smaller than the sum of its proper divisors (16812110).

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

13831090 is a wasteful number, since it uses less digits than its factorization.

13831090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15226.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13831090 is about 3719.0173433314. The cubic root of 13831090 is about 240.0410230801.

The spelling of 13831090 in words is "thirteen million, eight hundred thirty-one thousand, ninety".