16890269 has 6 divisors (see below), whose sum is σ = 18565470. Its totient is φ = 15354680.

The previous prime is 16890233. The next prime is 16890277. The reversal of 16890269 is 96209861.

It can be written as a sum of positive squares in only one way, i.e., 16297369 + 592900 = 4037^2 + 770^2 .

It is not a de Polignac number, because 16890269 - 2¹⁶ = 16824733 is a prime.

It is a super-2 number, since 2×16890269² = 570562373784722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69674 + ... + 69915.

It is an arithmetic number, because the mean of its divisors is an integer number (3094245).

Almost surely, 2^16890269 is an apocalyptic number.

It is an amenable number.

16890269 is a deficient number, since it is larger than the sum of its proper divisors (1675201).

16890269 is a wasteful number, since it uses less digits than its factorization.

16890269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139611 (or 139600 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 16890269 is about 4109.7772445718. Note that the first 3 decimals coincide. The cubic root of 16890269 is about 256.5737305253.

The spelling of 16890269 in words is "sixteen million, eight hundred ninety thousand, two hundred sixty-nine".