18054736 has 30 divisors (see below), whose sum is σ = 40694010. Its totient is φ = 7737408.

The previous prime is 18054727. The next prime is 18054763. The reversal of 18054736 is 63745081.

It can be written as a sum of positive squares in only one way, i.e., 17640000 + 414736 = 4200^2 + 644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10731 + ... + 12298.

It is an arithmetic number, because the mean of its divisors is an integer number (1356467).

Almost surely, 2^18054736 is an apocalyptic number.

18054736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18054736 is an abundant number, since it is smaller than the sum of its proper divisors (22639274).

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

18054736 is a wasteful number, since it uses less digits than its factorization.

18054736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23051 (or 23038 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 18054736 is about 4249.0864900588. The cubic root of 18054736 is about 262.3395167210.

The spelling of 18054736 in words is "eighteen million, fifty-four thousand, seven hundred thirty-six".