18099470 has 16 divisors (see below), whose sum is σ = 32719680. Its totient is φ = 7208544.

The previous prime is 18099467. The next prime is 18099479. The reversal of 18099470 is 7499081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18099479) 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, 1397 + ... + 6176.

It is an arithmetic number, because the mean of its divisors is an integer number (2044980).

Almost surely, 2^18099470 is an apocalyptic number.

18099470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18099470 is a deficient number, since it is larger than the sum of its proper divisors (14620210).

18099470 is a wasteful number, since it uses less digits than its factorization.

18099470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7819.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 18099470 is about 4254.3471884650. The cubic root of 18099470 is about 262.5560031683.

The spelling of 18099470 in words is "eighteen million, ninety-nine thousand, four hundred seventy".