15675228 has 48 divisors (see below), whose sum is σ = 42784000. Its totient is φ = 4949424.

The previous prime is 15675223. The next prime is 15675251. The reversal of 15675228 is 82257651.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15675192 and 15675201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15675223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1768 + ... + 5871.

Almost surely, 2^15675228 is an apocalyptic number.

15675228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15675228 is an abundant number, since it is smaller than the sum of its proper divisors (27108772).

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

15675228 is a wasteful number, since it uses less digits than its factorization.

15675228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7671 (or 7663 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 15675228 is about 3959.1953727999. The cubic root of 15675228 is about 250.2675961337.

The spelling of 15675228 in words is "fifteen million, six hundred seventy-five thousand, two hundred twenty-eight".