18057468 has 96 divisors (see below), whose sum is σ = 52496640. Its totient is φ = 4746240.

The previous prime is 18057449. The next prime is 18057491. The reversal of 18057468 is 86475081.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28863 + ... + 29481.

It is an arithmetic number, because the mean of its divisors is an integer number (546840).

Almost surely, 2^18057468 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 18057468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26248320).

18057468 is an abundant number, since it is smaller than the sum of its proper divisors (34439172).

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

18057468 is a wasteful number, since it uses less digits than its factorization.

18057468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 18057468 is about 4249.4079587632. The cubic root of 18057468 is about 262.3527482522.

The spelling of 18057468 in words is "eighteen million, fifty-seven thousand, four hundred sixty-eight".