15428830 has 32 divisors (see below), whose sum is σ = 28996704. Its totient is φ = 5905536.

The previous prime is 15428813. The next prime is 15428839. The reversal of 15428830 is 3882451.

It is a junction number, because it is equal to n+sod(n) for n = 15428792 and 15428801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15428839) 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, 22452 + ... + 23128.

It is an arithmetic number, because the mean of its divisors is an integer number (906147).

Almost surely, 2^15428830 is an apocalyptic number.

15428830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15428830 is a deficient number, since it is larger than the sum of its proper divisors (13567874).

15428830 is a wasteful number, since it uses less digits than its factorization.

15428830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 15428830 is about 3927.9549386417. The cubic root of 15428830 is about 248.9493507299.

The spelling of 15428830 in words is "fifteen million, four hundred twenty-eight thousand, eight hundred thirty".