16422393 has 16 divisors (see below), whose sum is σ = 23659776. Its totient is φ = 10072320.

The previous prime is 16422383. The next prime is 16422397. The reversal of 16422393 is 39322461.

It is not a de Polignac number, because 16422393 - 2⁴ = 16422377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16422393.

It is not an unprimeable number, because it can be changed into a prime (16422397) 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, 16321 + ... + 17297.

It is an arithmetic number, because the mean of its divisors is an integer number (1478736).

Almost surely, 2^16422393 is an apocalyptic number.

16422393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16422393 is a deficient number, since it is larger than the sum of its proper divisors (7237383).

16422393 is a wasteful number, since it uses less digits than its factorization.

16422393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424.

The product of its digits is 7776, while the sum is 30.

The square root of 16422393 is about 4052.4551817386. The cubic root of 16422393 is about 254.1824025135.

The spelling of 16422393 in words is "sixteen million, four hundred twenty-two thousand, three hundred ninety-three".