18496228 has 6 divisors (see below), whose sum is σ = 32368406. Its totient is φ = 9248112.

The previous prime is 18496223. The next prime is 18496259. The reversal of 18496228 is 82269481.

It can be written as a sum of positive squares in only one way, i.e., 12054784 + 6441444 = 3472^2 + 2538^2 .

It is a super-2 number, since 2×18496228² = 684220900455968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18496223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2312025 + ... + 2312032.

Almost surely, 2^18496228 is an apocalyptic number.

It is an amenable number.

18496228 is a deficient number, since it is larger than the sum of its proper divisors (13872178).

18496228 is a wasteful number, since it uses less digits than its factorization.

18496228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624061 (or 4624059 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 18496228 is about 4300.7241250748. The cubic root of 18496228 is about 264.4606473973.

The spelling of 18496228 in words is "eighteen million, four hundred ninety-six thousand, two hundred twenty-eight".