16490724 has 48 divisors (see below), whose sum is σ = 40521600. Its totient is φ = 5209600.

The previous prime is 16490723. The next prime is 16490741. The reversal of 16490724 is 42709461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16490723) 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 15 ways as a sum of consecutive naturals, for example, 40924 + ... + 41324.

It is an arithmetic number, because the mean of its divisors is an integer number (844200).

Almost surely, 2^16490724 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 16490724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20260800).

16490724 is an abundant number, since it is smaller than the sum of its proper divisors (24030876).

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

16490724 is a wasteful number, since it uses less digits than its factorization.

16490724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 16490724 is about 4060.8772451282. The cubic root of 16490724 is about 254.5344523847.

The spelling of 16490724 in words is "sixteen million, four hundred ninety thousand, seven hundred twenty-four".