18794400 has 144 divisors (see below), whose sum is σ = 62995968. Its totient is φ = 4864000.

The previous prime is 18794393. The next prime is 18794411. The reversal of 18794400 is 449781.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98305 + ... + 98495.

It is an arithmetic number, because the mean of its divisors is an integer number (437472).

Almost surely, 2^18794400 is an apocalyptic number.

18794400 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 18794400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31497984).

18794400 is an abundant number, since it is smaller than the sum of its proper divisors (44201568).

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

18794400 is a wasteful number, since it uses less digits than its factorization.

18794400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18794400 is about 4335.2508577936. The cubic root of 18794400 is about 265.8741749491.

The spelling of 18794400 in words is "eighteen million, seven hundred ninety-four thousand, four hundred".