18246772 has 12 divisors (see below), whose sum is σ = 32795140. Its totient is φ = 8876736.

The previous prime is 18246737. The next prime is 18246827. The reversal of 18246772 is 27764281.

It can be written as a sum of positive squares in 2 ways, for example, as 9696996 + 8549776 = 3114^2 + 2924^2 .

It is a hoax number, since the sum of its digits (37) 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 (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61497 + ... + 61792.

Almost surely, 2^18246772 is an apocalyptic number.

It is an amenable number.

18246772 is a deficient number, since it is larger than the sum of its proper divisors (14548368).

18246772 is a wasteful number, since it uses less digits than its factorization.

18246772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123330 (or 123328 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 18246772 is about 4271.6240471277. The cubic root of 18246772 is about 263.2663476827.

The spelling of 18246772 in words is "eighteen million, two hundred forty-six thousand, seven hundred seventy-two".