18466328 has 32 divisors (see below), whose sum is σ = 37632000. Its totient is φ = 8462880.

The previous prime is 18466303. The next prime is 18466333. The reversal of 18466328 is 82366481.

It is a happy number.

It is a hoax number, since the sum of its digits (38) 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 (38).

It is a junction number, because it is equal to n+sod(n) for n = 18466291 and 18466300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2753 + ... + 6671.

It is an arithmetic number, because the mean of its divisors is an integer number (1176000).

Almost surely, 2^18466328 is an apocalyptic number.

It is an amenable number.

18466328 is an abundant number, since it is smaller than the sum of its proper divisors (19165672).

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

18466328 is a wasteful number, since it uses less digits than its factorization.

18466328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975 (or 3971 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 18466328 is about 4297.2465602988. The cubic root of 18466328 is about 264.3180662889.

The spelling of 18466328 in words is "eighteen million, four hundred sixty-six thousand, three hundred twenty-eight".