18041672 has 16 divisors (see below), whose sum is σ = 36903600. Its totient is φ = 8200720.

The previous prime is 18041671. The next prime is 18041711. The reversal of 18041672 is 27614081.

It is not an unprimeable number, because it can be changed into a prime (18041671) 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, 102422 + ... + 102597.

It is an arithmetic number, because the mean of its divisors is an integer number (2306475).

Almost surely, 2^18041672 is an apocalyptic number.

It is an amenable number.

18041672 is an abundant number, since it is smaller than the sum of its proper divisors (18861928).

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

18041672 is a wasteful number, since it uses less digits than its factorization.

18041672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205036 (or 205032 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 18041672 is about 4247.5489402713. The cubic root of 18041672 is about 262.2762271332.

The spelling of 18041672 in words is "eighteen million, forty-one thousand, six hundred seventy-two".