16999452 has 72 divisors (see below), whose sum is σ = 46846800. Its totient is φ = 5177088.

The previous prime is 16999399. The next prime is 16999453. The reversal of 16999452 is 25499961.

It is a junction number, because it is equal to n+sod(n) for n = 16999398 and 16999407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16999453) 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, 19408 + ... + 20264.

It is an arithmetic number, because the mean of its divisors is an integer number (650650).

Almost surely, 2^16999452 is an apocalyptic number.

16999452 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 16999452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23423400).

16999452 is an abundant number, since it is smaller than the sum of its proper divisors (29847348).

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

16999452 is a wasteful number, since it uses less digits than its factorization.

16999452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 910 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 16999452 is about 4123.0391703208. The cubic root of 16999452 is about 257.1253961689.

The spelling of 16999452 in words is "sixteen million, nine hundred ninety-nine thousand, four hundred fifty-two".