16945572 has 96 divisors (see below), whose sum is σ = 48384000. Its totient is φ = 4605216.

The previous prime is 16945571. The next prime is 16945597. The reversal of 16945572 is 27554961.

It is a self number, because there is not a number n which added to its sum of digits gives 16945572.

It is not an unprimeable number, because it can be changed into a prime (16945571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94579 + ... + 94757.

It is an arithmetic number, because the mean of its divisors is an integer number (504000).

Almost surely, 2^16945572 is an apocalyptic number.

16945572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 4116×4117.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16945572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24192000).

16945572 is an abundant number, since it is smaller than the sum of its proper divisors (31438428).

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

16945572 is a wasteful number, since it uses less digits than its factorization.

16945572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 214 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 16945572 is about 4116.4999696344. The cubic root of 16945572 is about 256.8534544831.

The spelling of 16945572 in words is "sixteen million, nine hundred forty-five thousand, five hundred seventy-two".