18625480 has 48 divisors (see below), whose sum is σ = 43109460. Its totient is φ = 7242240.

The previous prime is 18625463. The next prime is 18625483. The reversal of 18625480 is 8452681.

It can be written as a sum of positive squares in 6 ways, for example, as 14884 + 18610596 = 122^2 + 4314^2 .

It is not an unprimeable number, because it can be changed into a prime (18625483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67102 + ... + 67378.

Almost surely, 2^18625480 is an apocalyptic number.

18625480 is a gapful number since it is divisible by the number (10) 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 18625480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21554730).

18625480 is an abundant number, since it is smaller than the sum of its proper divisors (24483980).

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

18625480 is a wasteful number, since it uses less digits than its factorization.

18625480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 18625480 is about 4315.7247363566. The cubic root of 18625480 is about 265.0752367363.

The spelling of 18625480 in words is "eighteen million, six hundred twenty-five thousand, four hundred eighty".