18321054 has 16 divisors (see below), whose sum is σ = 38570880. Its totient is φ = 5785560.

The previous prime is 18321013. The next prime is 18321059. The reversal of 18321054 is 45012381.

It is a super-2 number, since 2×18321054² = 671322039341832, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18321059) 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, 80242 + ... + 80469.

It is an arithmetic number, because the mean of its divisors is an integer number (2410680).

Almost surely, 2^18321054 is an apocalyptic number.

18321054 is an abundant number, since it is smaller than the sum of its proper divisors (20249826).

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

18321054 is a wasteful number, since it uses less digits than its factorization.

18321054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160735.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 18321054 is about 4280.3100354998. The cubic root of 18321054 is about 263.6231134983.

The spelling of 18321054 in words is "eighteen million, three hundred twenty-one thousand, fifty-four".