16624674 has 72 divisors (see below), whose sum is σ = 42014700. Its totient is φ = 4730880.

The previous prime is 16624667. The next prime is 16624679. The reversal of 16624674 is 47642661.

It can be written as a sum of positive squares in 2 ways, for example, as 15944049 + 680625 = 3993^2 + 825^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16624679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36802 + ... + 37250.

Almost surely, 2^16624674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16624674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21007350).

16624674 is an abundant number, since it is smaller than the sum of its proper divisors (25390026).

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

16624674 is a wasteful number, since it uses less digits than its factorization.

16624674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 482 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 16624674 is about 4077.3366306941. The cubic root of 16624674 is about 255.2217678618.

It can be divided in two parts, 1662 and 4674, that added together give a palindrome (6336).

The spelling of 16624674 in words is "sixteen million, six hundred twenty-four thousand, six hundred seventy-four".