16840764 has 96 divisors (see below), whose sum is σ = 47712000. Its totient is φ = 5116608.

The previous prime is 16840757. The next prime is 16840771. The reversal of 16840764 is 46704861.

It is an interprime number because it is at equal distance from previous prime (16840757) and next prime (16840771).

It is a super-2 number, since 2×16840764² = 567222664207392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59367 + ... + 59649.

It is an arithmetic number, because the mean of its divisors is an integer number (497000).

Almost surely, 2^16840764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16840764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23856000).

16840764 is an abundant number, since it is smaller than the sum of its proper divisors (30871236).

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

16840764 is a wasteful number, since it uses less digits than its factorization.

16840764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 16840764 is about 4103.7499923850. The cubic root of 16840764 is about 256.3228146039.

The spelling of 16840764 in words is "sixteen million, eight hundred forty thousand, seven hundred sixty-four".