16239384 has 72 divisors (see below), whose sum is σ = 51173460. Its totient is φ = 4638816.

The previous prime is 16239373. The next prime is 16239407. The reversal of 16239384 is 48393261.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1227 + ... + 5829.

Almost surely, 2^16239384 is an apocalyptic number.

16239384 is a gapful number since it is divisible by the number (14) 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 16239384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25586730).

16239384 is an abundant number, since it is smaller than the sum of its proper divisors (34934076).

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

16239384 is a wasteful number, since it uses less digits than its factorization.

16239384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629 (or 4615 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 16239384 is about 4029.8119062805. The cubic root of 16239384 is about 253.2346815023.

The spelling of 16239384 in words is "sixteen million, two hundred thirty-nine thousand, three hundred eighty-four".