18469320 has 32 divisors (see below), whose sum is σ = 55408320. Its totient is φ = 4925120.

The previous prime is 18469309. The next prime is 18469337. The reversal of 18469320 is 2396481.

It is a super-2 number, since 2×18469320² = 682231562524800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 76836 + ... + 77075.

It is an arithmetic number, because the mean of its divisors is an integer number (1731510).

Almost surely, 2^18469320 is an apocalyptic number.

18469320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18469320 is an abundant number, since it is smaller than the sum of its proper divisors (36939000).

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

18469320 is a wasteful number, since it uses less digits than its factorization.

18469320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153925 (or 153921 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 18469320 is about 4297.5946760950. The cubic root of 18469320 is about 264.3323408638.

The spelling of 18469320 in words is "eighteen million, four hundred sixty-nine thousand, three hundred twenty".