16890948 has 18 divisors (see below), whose sum is σ = 42696654. Its totient is φ = 5630304.

The previous prime is 16890917. The next prime is 16890949. The reversal of 16890948 is 84909861.

It can be written as a sum of positive squares in only one way, i.e., 16793604 + 97344 = 4098^2 + 312^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890949) 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, 234561 + ... + 234632.

Almost surely, 2^16890948 is an apocalyptic number.

16890948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16890948 is an abundant number, since it is smaller than the sum of its proper divisors (25805706).

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

16890948 is a wasteful number, since it uses less digits than its factorization.

16890948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469203 (or 469198 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 16890948 is about 4109.8598516251. The cubic root of 16890948 is about 256.5771686238.

The spelling of 16890948 in words is "sixteen million, eight hundred ninety thousand, nine hundred forty-eight".