18010740 has 96 divisors (see below), whose sum is σ = 56972160. Its totient is φ = 4211200.

The previous prime is 18010723. The next prime is 18010757. The reversal of 18010740 is 4701081.

It is an interprime number because it is at equal distance from previous prime (18010723) and next prime (18010757).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 18670 + ... + 19610.

It is an arithmetic number, because the mean of its divisors is an integer number (593460).

Almost surely, 2^18010740 is an apocalyptic number.

18010740 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 18010740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28486080).

18010740 is an abundant number, since it is smaller than the sum of its proper divisors (38961420).

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

18010740 is a wasteful number, since it uses less digits than its factorization.

18010740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 18010740 is about 4243.9062195105. The cubic root of 18010740 is about 262.1262526919.

The spelling of 18010740 in words is "eighteen million, ten thousand, seven hundred forty".