16831090 has 16 divisors (see below), whose sum is σ = 30358872. Its totient is φ = 6718464.

The previous prime is 16831081. The next prime is 16831117. The reversal of 16831090 is 9013861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15705369 + 1125721 = 3963^2 + 1061^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4312 + ... + 7228.

Almost surely, 2^16831090 is an apocalyptic number.

16831090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16831090 is a deficient number, since it is larger than the sum of its proper divisors (13527782).

16831090 is a wasteful number, since it uses less digits than its factorization.

16831090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 16831090 is about 4102.5711450260. The cubic root of 16831090 is about 256.2737245534.

The spelling of 16831090 in words is "sixteen million, eight hundred thirty-one thousand, ninety".