18470100 has 144 divisors (see below), whose sum is σ = 60621120. Its totient is φ = 4300800.

The previous prime is 18470099. The next prime is 18470113. The reversal of 18470100 is 107481.

It is a super-2 number, since 2×18470100² = 682289188020000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95604 + ... + 95796.

It is an arithmetic number, because the mean of its divisors is an integer number (420980).

Almost surely, 2^18470100 is an apocalyptic number.

18470100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18470100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30310560).

18470100 is an abundant number, since it is smaller than the sum of its proper divisors (42151020).

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

18470100 is a wasteful number, since it uses less digits than its factorization.

18470100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 18470100 is about 4297.6854235739. The cubic root of 18470100 is about 264.3360619235.

Adding to 18470100 its reverse (107481), we get a palindrome (18577581).

The spelling of 18470100 in words is "eighteen million, four hundred seventy thousand, one hundred".