15428144 has 10 divisors (see below), whose sum is σ = 29892060. Its totient is φ = 7714064.

The previous prime is 15428143. The next prime is 15428159. The reversal of 15428144 is 44182451.

15428144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15428143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482114 + ... + 482145.

It is an arithmetic number, because the mean of its divisors is an integer number (2989206).

Almost surely, 2^15428144 is an apocalyptic number.

It is an amenable number.

15428144 is a deficient number, since it is larger than the sum of its proper divisors (14463916).

15428144 is an equidigital number, since it uses as much as digits as its factorization.

15428144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964267 (or 964261 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 15428144 is about 3927.8676148771. The cubic root of 15428144 is about 248.9456610618.

The spelling of 15428144 in words is "fifteen million, four hundred twenty-eight thousand, one hundred forty-four".