18932086 has 8 divisors (see below), whose sum is σ = 29165760. Its totient is φ = 9210168.

The previous prime is 18932071. The next prime is 18932093. The reversal of 18932086 is 68023981.

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

It is a super-2 number, since 2×18932086² = 716847760622792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127846 + ... + 127993.

It is an arithmetic number, because the mean of its divisors is an integer number (3645720).

Almost surely, 2^18932086 is an apocalyptic number.

18932086 is a deficient number, since it is larger than the sum of its proper divisors (10233674).

18932086 is a wasteful number, since it uses less digits than its factorization.

18932086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255878.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 18932086 is about 4351.1016995699. The cubic root of 18932086 is about 266.5218522750.

The spelling of 18932086 in words is "eighteen million, nine hundred thirty-two thousand, eighty-six".