15328390 has 64 divisors (see below), whose sum is σ = 36453888. Its totient is φ = 4492800.

The previous prime is 15328387. The next prime is 15328393. The reversal of 15328390 is 9382351.

It is a happy number.

15328390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15328387) and next prime (15328393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15328393) 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, 12505 + ... + 13675.

It is an arithmetic number, because the mean of its divisors is an integer number (569592).

Almost surely, 2^15328390 is an apocalyptic number.

15328390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15328390 is an abundant number, since it is smaller than the sum of its proper divisors (21125498).

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

15328390 is a wasteful number, since it uses less digits than its factorization.

15328390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 15328390 is about 3915.1487838906. The cubic root of 15328390 is about 248.4079631960.

The spelling of 15328390 in words is "fifteen million, three hundred twenty-eight thousand, three hundred ninety".