18154930 has 16 divisors (see below), whose sum is σ = 32748480. Its totient is φ = 7246512.

The previous prime is 18154921. The next prime is 18154943. The reversal of 18154930 is 3945181.

It is a junction number, because it is equal to n+sod(n) for n = 18154892 and 18154901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3811 + ... + 7129.

It is an arithmetic number, because the mean of its divisors is an integer number (2046780).

Almost surely, 2^18154930 is an apocalyptic number.

18154930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18154930 is a deficient number, since it is larger than the sum of its proper divisors (14593550).

18154930 is a wasteful number, since it uses less digits than its factorization.

18154930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 18154930 is about 4260.8602417822. The cubic root of 18154930 is about 262.8239025108.

The spelling of 18154930 in words is "eighteen million, one hundred fifty-four thousand, nine hundred thirty".