18460642 has 8 divisors (see below), whose sum is σ = 28213596. Its totient is φ = 9056112.

The previous prime is 18460627. The next prime is 18460661. The reversal of 18460642 is 24606481.

It can be written as a sum of positive squares in 2 ways, for example, as 18412681 + 47961 = 4291^2 + 219^2 .

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

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, 86973 + ... + 87184.

Almost surely, 2^18460642 is an apocalyptic number.

18460642 is a deficient number, since it is larger than the sum of its proper divisors (9752954).

18460642 is a wasteful number, since it uses less digits than its factorization.

18460642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174212.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 18460642 is about 4296.5849229359. The cubic root of 18460642 is about 264.2909346216.

The spelling of 18460642 in words is "eighteen million, four hundred sixty thousand, six hundred forty-two".