18229100 has 36 divisors (see below), whose sum is σ = 41887944. Its totient is φ = 6862080.

The previous prime is 18229097. The next prime is 18229103. The reversal of 18229100 is 192281.

It is an interprime number because it is at equal distance from previous prime (18229097) and next prime (18229103).

It is not an unprimeable number, because it can be changed into a prime (18229103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3662 + ... + 7061.

It is an arithmetic number, because the mean of its divisors is an integer number (1163554).

Almost surely, 2^18229100 is an apocalyptic number.

18229100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18229100 is an abundant number, since it is smaller than the sum of its proper divisors (23658844).

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

18229100 is a wasteful number, since it uses less digits than its factorization.

18229100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10754 (or 10747 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 18229100 is about 4269.5550119421. Note that the first 3 decimals coincide. The cubic root of 18229100 is about 263.1813290710.

The spelling of 18229100 in words is "eighteen million, two hundred twenty-nine thousand, one hundred".