18069432 has 64 divisors (see below), whose sum is σ = 46932480. Its totient is φ = 5793792.

The previous prime is 18069371. The next prime is 18069473. The reversal of 18069432 is 23496081.

It is a junction number, because it is equal to n+sod(n) for n = 18069393 and 18069402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93528 + ... + 93720.

It is an arithmetic number, because the mean of its divisors is an integer number (733320).

Almost surely, 2^18069432 is an apocalyptic number.

18069432 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 18069432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23466240).

18069432 is an abundant number, since it is smaller than the sum of its proper divisors (28863048).

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

18069432 is a wasteful number, since it uses less digits than its factorization.

18069432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 18069432 is about 4250.8154511811. The cubic root of 18069432 is about 262.4106761842.

The spelling of 18069432 in words is "eighteen million, sixty-nine thousand, four hundred thirty-two".