18406704 has 80 divisors (see below), whose sum is σ = 49996800. Its totient is φ = 5829120.

The previous prime is 18406691. The next prime is 18406711. The reversal of 18406704 is 40760481.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92397 + ... + 92595.

It is an arithmetic number, because the mean of its divisors is an integer number (624960).

Almost surely, 2^18406704 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 18406704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24998400).

18406704 is an abundant number, since it is smaller than the sum of its proper divisors (31590096).

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

18406704 is a wasteful number, since it uses less digits than its factorization.

18406704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 18406704 is about 4290.3034857688. The cubic root of 18406704 is about 264.0332832234.

It can be divided in two parts, 18406 and 704, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 18406704 in words is "eighteen million, four hundred six thousand, seven hundred four".