16490720 has 24 divisors (see below), whose sum is σ = 38959704. Its totient is φ = 6596224.

The previous prime is 16490717. The next prime is 16490723. The reversal of 16490720 is 2709461.

16490720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16490717) and next prime (16490723).

It is a super-2 number, since 2×16490720² = 543887692236800, which contains 22 as substring.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51374 + ... + 51693.

It is an arithmetic number, because the mean of its divisors is an integer number (1623321).

Almost surely, 2^16490720 is an apocalyptic number.

16490720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16490720 is an abundant number, since it is smaller than the sum of its proper divisors (22468984).

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

16490720 is a wasteful number, since it uses less digits than its factorization.

16490720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103082 (or 103074 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16490720 is about 4060.8767526237. The cubic root of 16490720 is about 254.5344318047.

The spelling of 16490720 in words is "sixteen million, four hundred ninety thousand, seven hundred twenty".