18504954 has 48 divisors (see below), whose sum is σ = 44588544. Its totient is φ = 5508000.

The previous prime is 18504953. The next prime is 18504961. The reversal of 18504954 is 45940581.

It is not an unprimeable number, because it can be changed into a prime (18504953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5979 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (928928).

Almost surely, 2^18504954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18504954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22294272).

18504954 is an abundant number, since it is smaller than the sum of its proper divisors (26083590).

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

18504954 is a wasteful number, since it uses less digits than its factorization.

18504954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603 (or 2600 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 18504954 is about 4301.7384857753. The cubic root of 18504954 is about 264.5022292233.

The spelling of 18504954 in words is "eighteen million, five hundred four thousand, nine hundred fifty-four".