15428998 has 16 divisors (see below), whose sum is σ = 26008416. Its totient is φ = 6811200.

The previous prime is 15428993. The next prime is 15429017. The reversal of 15428998 is 89982451.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15428993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12303 + ... + 13498.

It is an arithmetic number, because the mean of its divisors is an integer number (1625526).

Almost surely, 2^15428998 is an apocalyptic number.

15428998 is a deficient number, since it is larger than the sum of its proper divisors (10579418).

15428998 is a wasteful number, since it uses less digits than its factorization.

15428998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25839.

The product of its digits is 207360, while the sum is 46.

The square root of 15428998 is about 3927.9763237576. The cubic root of 15428998 is about 248.9502543054.

The spelling of 15428998 in words is "fifteen million, four hundred twenty-eight thousand, nine hundred ninety-eight".