18476484 has 48 divisors (see below), whose sum is σ = 49166208. Its totient is φ = 5349888.

The previous prime is 18476477. The next prime is 18476503. The reversal of 18476484 is 48467481.

It is a happy number.

It is a super-2 number, since 2×18476484² = 682760922004512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (1024296).

Almost surely, 2^18476484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18476484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24583104).

18476484 is an abundant number, since it is smaller than the sum of its proper divisors (30689724).

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

18476484 is a wasteful number, since it uses less digits than its factorization.

18476484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7004 (or 7002 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 18476484 is about 4298.4280847770. The cubic root of 18476484 is about 264.3665134285.

The spelling of 18476484 in words is "eighteen million, four hundred seventy-six thousand, four hundred eighty-four".