15799490 has 64 divisors (see below), whose sum is σ = 34594560. Its totient is φ = 5080320.

The previous prime is 15799489. The next prime is 15799493. The reversal of 15799490 is 9499751.

It is not an unprimeable number, because it can be changed into a prime (15799493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87200 + ... + 87380.

It is an arithmetic number, because the mean of its divisors is an integer number (540540).

Almost surely, 2^15799490 is an apocalyptic number.

15799490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15799490 is an abundant number, since it is smaller than the sum of its proper divisors (18795070).

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

15799490 is a wasteful number, since it uses less digits than its factorization.

15799490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 15799490 is about 3974.8572301405. The cubic root of 15799490 is about 250.9271705019.

The spelling of 15799490 in words is "fifteen million, seven hundred ninety-nine thousand, four hundred ninety".