15400089 has 12 divisors (see below), whose sum is σ = 23415600. Its totient is φ = 9726264.

The previous prime is 15400057. The next prime is 15400093. The reversal of 15400089 is 98000451.

It is not a de Polignac number, because 15400089 - 2⁵ = 15400057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15400039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44859 + ... + 45200.

It is an arithmetic number, because the mean of its divisors is an integer number (1951300).

Almost surely, 2^15400089 is an apocalyptic number.

15400089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15400089 is a deficient number, since it is larger than the sum of its proper divisors (8015511).

15400089 is a wasteful number, since it uses less digits than its factorization.

15400089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90084 (or 90081 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 15400089 is about 3924.2947137033. The cubic root of 15400089 is about 248.7946727508.

The spelling of 15400089 in words is "fifteen million, four hundred thousand, eighty-nine".