16940502 has 36 divisors (see below), whose sum is σ = 38143716. Its totient is φ = 5642460.

The previous prime is 16940501. The next prime is 16940507. The reversal of 16940502 is 20504961.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16940501) 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 17 ways as a sum of consecutive naturals, for example, 12477 + ... + 13767.

Almost surely, 2^16940502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16940502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19071858).

16940502 is an abundant number, since it is smaller than the sum of its proper divisors (21203214).

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

16940502 is an frugal number, since it uses more digits than its factorization.

16940502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 16940502 is about 4115.8841091557. The cubic root of 16940502 is about 256.8278356585.

The spelling of 16940502 in words is "sixteen million, nine hundred forty thousand, five hundred two".