15457228 has 6 divisors (see below), whose sum is σ = 27050156. Its totient is φ = 7728612.

The previous prime is 15457207. The next prime is 15457243. The reversal of 15457228 is 82275451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15457193 and 15457202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932150 + ... + 1932157.

Almost surely, 2^15457228 is an apocalyptic number.

It is an amenable number.

15457228 is a deficient number, since it is larger than the sum of its proper divisors (11592928).

15457228 is a wasteful number, since it uses less digits than its factorization.

15457228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864311 (or 3864309 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 15457228 is about 3931.5681349813. The cubic root of 15457228 is about 249.1019942046.

The spelling of 15457228 in words is "fifteen million, four hundred fifty-seven thousand, two hundred twenty-eight".