18632672 has 48 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 8964480.

The previous prime is 18632671. The next prime is 18632687. The reversal of 18632672 is 27623681.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18632671) 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, 133979 + ... + 134117.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^18632672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18632672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19051200).

18632672 is an abundant number, since it is smaller than the sum of its proper divisors (19469728).

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

18632672 is a wasteful number, since it uses less digits than its factorization.

18632672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 271 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 18632672 is about 4316.5578879473. The cubic root of 18632672 is about 265.1093508598.

The spelling of 18632672 in words is "eighteen million, six hundred thirty-two thousand, six hundred seventy-two".