18120354 has 32 divisors (see below), whose sum is σ = 41579136. Its totient is φ = 5157120.

The previous prime is 18120353. The next prime is 18120359. The reversal of 18120354 is 45302181.

18120354 = T₁₆₇ + T₁₆₈ + ... + T₄₈₃.

It is not an unprimeable number, because it can be changed into a prime (18120353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12634 + ... + 13994.

It is an arithmetic number, because the mean of its divisors is an integer number (1299348).

Almost surely, 2^18120354 is an apocalyptic number.

18120354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18120354 is an abundant number, since it is smaller than the sum of its proper divisors (23458782).

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

18120354 is a wasteful number, since it uses less digits than its factorization.

18120354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690.

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

The square root of 18120354 is about 4256.8009114827. The cubic root of 18120354 is about 262.6569474131.

The spelling of 18120354 in words is "eighteen million, one hundred twenty thousand, three hundred fifty-four".