16402443 has 8 divisors (see below), whose sum is σ = 22169808. Its totient is φ = 10785024.

The previous prime is 16402439. The next prime is 16402447. The reversal of 16402443 is 34420461.

It is an interprime number because it is at equal distance from previous prime (16402439) and next prime (16402447).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16402443 - 2² = 16402439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16402447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37230 + ... + 37667.

It is an arithmetic number, because the mean of its divisors is an integer number (2771226).

Almost surely, 2^16402443 is an apocalyptic number.

16402443 is a deficient number, since it is larger than the sum of its proper divisors (5767365).

16402443 is an equidigital number, since it uses as much as digits as its factorization.

16402443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74973.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 16402443 is about 4049.9929629568. The cubic root of 16402443 is about 254.0794334817.

The spelling of 16402443 in words is "sixteen million, four hundred two thousand, four hundred forty-three".