15468228 has 18 divisors (see below), whose sum is σ = 39100334. Its totient is φ = 5156064.

The previous prime is 15468227. The next prime is 15468239. The reversal of 15468228 is 82286451.

It can be written as a sum of positive squares in only one way, i.e., 8749764 + 6718464 = 2958^2 + 2592^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 429673 = 15468228 / (1 + 5 + 4 + 6 + 8 + 2 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 15468192 and 15468201.

It is not an unprimeable number, because it can be changed into a prime (15468227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214801 + ... + 214872.

Almost surely, 2^15468228 is an apocalyptic number.

15468228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15468228 is an abundant number, since it is smaller than the sum of its proper divisors (23632106).

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

15468228 is a wasteful number, since it uses less digits than its factorization.

15468228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429683 (or 429678 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 15468228 is about 3932.9668190820. The cubic root of 15468228 is about 249.1610706056.

The spelling of 15468228 in words is "fifteen million, four hundred sixty-eight thousand, two hundred twenty-eight".