18472434 has 16 divisors (see below), whose sum is σ = 37191360. Its totient is φ = 6116400.

The previous prime is 18472423. The next prime is 18472439. The reversal of 18472434 is 43427481.

It is a junction number, because it is equal to n+sod(n) for n = 18472395 and 18472404.

It is not an unprimeable number, because it can be changed into a prime (18472439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9289 + ... + 11100.

It is an arithmetic number, because the mean of its divisors is an integer number (2324460).

Almost surely, 2^18472434 is an apocalyptic number.

18472434 is an abundant number, since it is smaller than the sum of its proper divisors (18718926).

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

18472434 is a wasteful number, since it uses less digits than its factorization.

18472434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20545.

The product of its digits is 21504, while the sum is 33.

The square root of 18472434 is about 4297.9569565085. The cubic root of 18472434 is about 264.3471958531.

The spelling of 18472434 in words is "eighteen million, four hundred seventy-two thousand, four hundred thirty-four".