16424426 has 4 divisors (see below), whose sum is σ = 24636642. Its totient is φ = 8212212.

The previous prime is 16424423. The next prime is 16424449. The reversal of 16424426 is 62442461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62442461 = 47 ⋅1328563.

It can be written as a sum of positive squares in only one way, i.e., 14025025 + 2399401 = 3745^2 + 1549^2 .

It is not an unprimeable number, because it can be changed into a prime (16424423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106105 + ... + 4106108.

Almost surely, 2^16424426 is an apocalyptic number.

16424426 is a deficient number, since it is larger than the sum of its proper divisors (8212216).

16424426 is an equidigital number, since it uses as much as digits as its factorization.

16424426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212215.

The product of its digits is 9216, while the sum is 29.

The square root of 16424426 is about 4052.7060095694. The cubic root of 16424426 is about 254.1928908652.

Adding to 16424426 its reverse (62442461), we get a palindrome (78866887).

The spelling of 16424426 in words is "sixteen million, four hundred twenty-four thousand, four hundred twenty-six".