16874740 has 12 divisors (see below), whose sum is σ = 35436996. Its totient is φ = 6749888.

The previous prime is 16874729. The next prime is 16874743. The reversal of 16874740 is 4747861.

It can be written as a sum of positive squares in 2 ways, for example, as 2782224 + 14092516 = 1668^2 + 3754^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16874740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16874743) 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, 421849 + ... + 421888.

It is an arithmetic number, because the mean of its divisors is an integer number (2953083).

Almost surely, 2^16874740 is an apocalyptic number.

16874740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16874740 is an abundant number, since it is smaller than the sum of its proper divisors (18562256).

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

16874740 is a wasteful number, since it uses less digits than its factorization.

16874740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843746 (or 843744 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 16874740 is about 4107.8875349746. The cubic root of 16874740 is about 256.4950746799.

The spelling of 16874740 in words is "sixteen million, eight hundred seventy-four thousand, seven hundred forty".