18081962 has 8 divisors (see below), whose sum is σ = 27153792. Its totient is φ = 9030700.

The previous prime is 18081961. The next prime is 18081967. The reversal of 18081962 is 26918081.

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

It is not an unprimeable number, because it can be changed into a prime (18081961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (3394224).

Almost surely, 2^18081962 is an apocalyptic number.

18081962 is a deficient number, since it is larger than the sum of its proper divisors (9071830).

18081962 is an equidigital number, since it uses as much as digits as its factorization.

18081962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 18081962 is about 4252.2890306281. The cubic root of 18081962 is about 262.4713171986.

The spelling of 18081962 in words is "eighteen million, eighty-one thousand, nine hundred sixty-two".