16981952 has 28 divisors (see below), whose sum is σ = 36292536. Its totient is φ = 7837440.

The previous prime is 16981933. The next prime is 16981957. The reversal of 16981952 is 25918961.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16981957) 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, 9374 + ... + 11037.

It is an arithmetic number, because the mean of its divisors is an integer number (1296162).

Almost surely, 2^16981952 is an apocalyptic number.

It is an amenable number.

16981952 is an abundant number, since it is smaller than the sum of its proper divisors (19310584).

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

16981952 is a wasteful number, since it uses less digits than its factorization.

16981952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20436 (or 20426 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 16981952 is about 4120.9164029376. The cubic root of 16981952 is about 257.0371337280.

The spelling of 16981952 in words is "sixteen million, nine hundred eighty-one thousand, nine hundred fifty-two".