16743420 has 72 divisors (see below), whose sum is σ = 51184224. Its totient is φ = 4430208.

The previous prime is 16743413. The next prime is 16743443. The reversal of 16743420 is 2434761.

It is a super-2 number, since 2×16743420² = 560684226592800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29782 + ... + 30338.

It is an arithmetic number, because the mean of its divisors is an integer number (710892).

Almost surely, 2^16743420 is an apocalyptic number.

16743420 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 16743420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25592112).

16743420 is an abundant number, since it is smaller than the sum of its proper divisors (34440804).

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

16743420 is a wasteful number, since it uses less digits than its factorization.

16743420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 16743420 is about 4091.8724320291. The cubic root of 16743420 is about 255.8279891037.

The spelling of 16743420 in words is "sixteen million, seven hundred forty-three thousand, four hundred twenty".