16426438 has 16 divisors (see below), whose sum is σ = 28440864. Its totient is φ = 6969600.

The previous prime is 16426433. The next prime is 16426477. The reversal of 16426438 is 83462461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16426433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4395 + ... + 7222.

It is an arithmetic number, because the mean of its divisors is an integer number (1777554).

Almost surely, 2^16426438 is an apocalyptic number.

16426438 is a deficient number, since it is larger than the sum of its proper divisors (12014426).

16426438 is a wasteful number, since it uses less digits than its factorization.

16426438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11727.

The product of its digits is 27648, while the sum is 34.

The square root of 16426438 is about 4052.9542311751. The cubic root of 16426438 is about 254.2032700247.

Adding to 16426438 its reverse (83462461), we get a palindrome (99888899).

The spelling of 16426438 in words is "sixteen million, four hundred twenty-six thousand, four hundred thirty-eight".