18194480 has 20 divisors (see below), whose sum is σ = 42302352. Its totient is φ = 7277760.

The previous prime is 18194467. The next prime is 18194507. The reversal of 18194480 is 8449181.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 18194480.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113636 + ... + 113795.

Almost surely, 2^18194480 is an apocalyptic number.

18194480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18194480 is an abundant number, since it is smaller than the sum of its proper divisors (24107872).

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

18194480 is a wasteful number, since it uses less digits than its factorization.

18194480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227444 (or 227438 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 18194480 is about 4265.4987984994. The cubic root of 18194480 is about 263.0146155621.

The spelling of 18194480 in words is "eighteen million, one hundred ninety-four thousand, four hundred eighty".