15428080 has 40 divisors (see below), whose sum is σ = 37033344. Its totient is φ = 5971200.

The previous prime is 15428071. The next prime is 15428093. The reversal of 15428080 is 8082451.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 631 + ... + 5590.

Almost surely, 2^15428080 is an apocalyptic number.

15428080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15428080 is an abundant number, since it is smaller than the sum of its proper divisors (21605264).

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

15428080 is a wasteful number, since it uses less digits than its factorization.

15428080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265 (or 6259 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 15428080 is about 3927.8594679545. The cubic root of 15428080 is about 248.9453168306.

The spelling of 15428080 in words is "fifteen million, four hundred twenty-eight thousand, eighty".