18057750 has 32 divisors (see below), whose sum is σ = 45074016. Its totient is φ = 4815200.

The previous prime is 18057731. The next prime is 18057751. The reversal of 18057750 is 5775081.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18057751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11289 + ... + 12788.

It is an arithmetic number, because the mean of its divisors is an integer number (1408563).

Almost surely, 2^18057750 is an apocalyptic number.

18057750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18057750 is an abundant number, since it is smaller than the sum of its proper divisors (27016266).

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

18057750 is a wasteful number, since it uses less digits than its factorization.

18057750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24097 (or 24087 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 18057750 is about 4249.4411397265. The cubic root of 18057750 is about 262.3541139493.

The spelling of 18057750 in words is "eighteen million, fifty-seven thousand, seven hundred fifty".