18224030 has 16 divisors (see below), whose sum is σ = 35785584. Its totient is φ = 6626880.

The previous prime is 18224029. The next prime is 18224033. The reversal of 18224030 is 3042281.

It is a junction number, because it is equal to n+sod(n) for n = 18223993 and 18224011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18224033) 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, 82727 + ... + 82946.

It is an arithmetic number, because the mean of its divisors is an integer number (2236599).

Almost surely, 2^18224030 is an apocalyptic number.

18224030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18224030 is a deficient number, since it is larger than the sum of its proper divisors (17561554).

18224030 is a wasteful number, since it uses less digits than its factorization.

18224030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165691.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 18224030 is about 4268.9612319626. The cubic root of 18224030 is about 263.1569275543.

The spelling of 18224030 in words is "eighteen million, two hundred twenty-four thousand, thirty".