18275964 has 48 divisors (see below), whose sum is σ = 49260288. Its totient is φ = 5165568.

The previous prime is 18275963. The next prime is 18275977. The reversal of 18275964 is 46957281.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18275963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7027 + ... + 9269.

It is an arithmetic number, because the mean of its divisors is an integer number (1026256).

Almost surely, 2^18275964 is an apocalyptic number.

18275964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18275964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24630144).

18275964 is an abundant number, since it is smaller than the sum of its proper divisors (30984324).

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

18275964 is a wasteful number, since it uses less digits than its factorization.

18275964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2352 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 18275964 is about 4275.0396489389. The cubic root of 18275964 is about 263.4066679623.

The spelling of 18275964 in words is "eighteen million, two hundred seventy-five thousand, nine hundred sixty-four".