18427552 has 48 divisors (see below), whose sum is σ = 42632352. Its totient is φ = 7729920.

The previous prime is 18427543. The next prime is 18427559. The reversal of 18427552 is 25572481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18427559) 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, 2563 + ... + 6589.

It is an arithmetic number, because the mean of its divisors is an integer number (888174).

Almost surely, 2^18427552 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 18427552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21316176).

18427552 is an abundant number, since it is smaller than the sum of its proper divisors (24204800).

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

18427552 is a wasteful number, since it uses less digits than its factorization.

18427552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061 (or 4053 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 18427552 is about 4292.7324631288. The cubic root of 18427552 is about 264.1329296888.

Subtracting 18427552 from its reverse (25572481), we obtain a square (7144929 = 2673²).

The spelling of 18427552 in words is "eighteen million, four hundred twenty-seven thousand, five hundred fifty-two".