18154332 has 72 divisors (see below), whose sum is σ = 53350752. Its totient is φ = 5097600.

The previous prime is 18154327. The next prime is 18154333. The reversal of 18154332 is 23345181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18154296 and 18154305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18154333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14782 + ... + 15962.

Almost surely, 2^18154332 is an apocalyptic number.

18154332 is a gapful number since it is divisible by the number (12) 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 18154332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26675376).

18154332 is an abundant number, since it is smaller than the sum of its proper divisors (35196420).

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

18154332 is a wasteful number, since it uses less digits than its factorization.

18154332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1254 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 18154332 is about 4260.7900675814. The cubic root of 18154332 is about 262.8210167856.

The spelling of 18154332 in words is "eighteen million, one hundred fifty-four thousand, three hundred thirty-two".