18141790 has 8 divisors (see below), whose sum is σ = 32655240. Its totient is φ = 7256712.

The previous prime is 18141787. The next prime is 18141841. The reversal of 18141790 is 9714181.

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

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, 907080 + ... + 907099.

It is an arithmetic number, because the mean of its divisors is an integer number (4081905).

Almost surely, 2^18141790 is an apocalyptic number.

18141790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18141790 is a deficient number, since it is larger than the sum of its proper divisors (14513450).

18141790 is a wasteful number, since it uses less digits than its factorization.

18141790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814186.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 18141790 is about 4259.3180205286. The cubic root of 18141790 is about 262.7604791579.

The spelling of 18141790 in words is "eighteen million, one hundred forty-one thousand, seven hundred ninety".