18800534 has 8 divisors (see below), whose sum is σ = 28240608. Its totient is φ = 9387000.

The previous prime is 18800513. The next prime is 18800563. The reversal of 18800534 is 43500881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18800497 and 18800506.

It is a congruent number.

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, 4757 + ... + 7760.

It is an arithmetic number, because the mean of its divisors is an integer number (3530076).

Almost surely, 2^18800534 is an apocalyptic number.

18800534 is a deficient number, since it is larger than the sum of its proper divisors (9440074).

18800534 is a wasteful number, since it uses less digits than its factorization.

18800534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13270.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 18800534 is about 4335.9582562566. The cubic root of 18800534 is about 265.9030965924.

The spelling of 18800534 in words is "eighteen million, eight hundred thousand, five hundred thirty-four".