15428898 has 12 divisors (see below), whose sum is σ = 33429318. Its totient is φ = 5142960.

The previous prime is 15428891. The next prime is 15428909. The reversal of 15428898 is 89882451.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15421329 + 7569 = 3927^2 + 87^2 .

It is not an unprimeable number, because it can be changed into a prime (15428891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 428563 + ... + 428598.

Almost surely, 2^15428898 is an apocalyptic number.

15428898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

15428898 is an abundant number, since it is smaller than the sum of its proper divisors (18000420).

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

15428898 is a wasteful number, since it uses less digits than its factorization.

15428898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857169 (or 857166 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 15428898 is about 3927.9635945360. The cubic root of 15428898 is about 248.9497164636.

It can be divided in two parts, 1542 and 8898, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 15428898 in words is "fifteen million, four hundred twenty-eight thousand, eight hundred ninety-eight".