16894420 has 48 divisors (see below), whose sum is σ = 38989440. Its totient is φ = 6120576.

The previous prime is 16894403. The next prime is 16894421. The reversal of 16894420 is 2449861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16894421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7774 + ... + 9706.

It is an arithmetic number, because the mean of its divisors is an integer number (812280).

Almost surely, 2^16894420 is an apocalyptic number.

16894420 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 16894420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19494720).

16894420 is an abundant number, since it is smaller than the sum of its proper divisors (22095020).

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

16894420 is a wasteful number, since it uses less digits than its factorization.

16894420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 16894420 is about 4110.2822287527. The cubic root of 16894420 is about 256.5947475641.

The spelling of 16894420 in words is "sixteen million, eight hundred ninety-four thousand, four hundred twenty".