16814040 has 64 divisors (see below), whose sum is σ = 51291360. Its totient is φ = 4408320.

The previous prime is 16814033. The next prime is 16814089. The reversal of 16814040 is 4041861.

It is a super-2 number, since 2×16814040² = 565423882243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16814040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6172 + ... + 8468.

Almost surely, 2^16814040 is an apocalyptic number.

16814040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16814040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25645680).

16814040 is an abundant number, since it is smaller than the sum of its proper divisors (34477320).

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

16814040 is a wasteful number, since it uses less digits than its factorization.

16814040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372 (or 2368 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 16814040 is about 4100.4926533284. The cubic root of 16814040 is about 256.1871596851.

The spelling of 16814040 in words is "sixteen million, eight hundred fourteen thousand, forty".