18150450 has 48 divisors (see below), whose sum is σ = 46979136. Its totient is φ = 4628800.

The previous prime is 18150449. The next prime is 18150493. The reversal of 18150450 is 5405181.

It is a self number, because there is not a number n which added to its sum of digits gives 18150450.

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 23 ways as a sum of consecutive naturals, for example, 820 + ... + 6080.

It is an arithmetic number, because the mean of its divisors is an integer number (978732).

Almost surely, 2^18150450 is an apocalyptic number.

18150450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18150450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23489568).

18150450 is an abundant number, since it is smaller than the sum of its proper divisors (28828686).

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

18150450 is a wasteful number, since it uses less digits than its factorization.

18150450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5299 (or 5294 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 18150450 is about 4260.3344939101. The cubic root of 18150450 is about 262.8022821585.

The spelling of 18150450 in words is "eighteen million, one hundred fifty thousand, four hundred fifty".