18672764 has 24 divisors (see below), whose sum is σ = 35779968. Its totient is φ = 8456240.

The previous prime is 18672761. The next prime is 18672799. The reversal of 18672764 is 46727681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18672761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14657 + ... + 15879.

It is an arithmetic number, because the mean of its divisors is an integer number (1490832).

Almost surely, 2^18672764 is an apocalyptic number.

It is an amenable number.

18672764 is a deficient number, since it is larger than the sum of its proper divisors (17107204).

18672764 is a wasteful number, since it uses less digits than its factorization.

18672764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1583 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 18672764 is about 4321.1993705452. The cubic root of 18672764 is about 265.2993602848.

The spelling of 18672764 in words is "eighteen million, six hundred seventy-two thousand, seven hundred sixty-four".