16003372 has 48 divisors (see below), whose sum is σ = 35223552. Its totient is φ = 6180480.

The previous prime is 16003369. The next prime is 16003387. The reversal of 16003372 is 27330061.

It is a super-2 number, since 2×16003372² = 512215830740768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 15 ways as a sum of consecutive naturals, for example, 68568 + ... + 68800.

It is an arithmetic number, because the mean of its divisors is an integer number (733824).

Almost surely, 2^16003372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16003372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17611776).

16003372 is an abundant number, since it is smaller than the sum of its proper divisors (19220180).

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

16003372 is a wasteful number, since it uses less digits than its factorization.

16003372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 16003372 is about 4000.4214777946. The cubic root of 16003372 is about 252.0019106263.

The spelling of 16003372 in words is "sixteen million, three thousand, three hundred seventy-two".