16434406 has 4 divisors (see below), whose sum is σ = 24651612. Its totient is φ = 8217202.

The previous prime is 16434403. The next prime is 16434409. The reversal of 16434406 is 60443461.

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: 60443461 = 13 ⋅4649497.

It is an interprime number because it is at equal distance from previous prime (16434403) and next prime (16434409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4108600 + ... + 4108603.

It is an arithmetic number, because the mean of its divisors is an integer number (6162903).

Almost surely, 2^16434406 is an apocalyptic number.

16434406 is a deficient number, since it is larger than the sum of its proper divisors (8217206).

16434406 is an equidigital number, since it uses as much as digits as its factorization.

16434406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217205.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 16434406 is about 4053.9370986733. The cubic root of 16434406 is about 254.2443656504.

Adding to 16434406 its reverse (60443461), we get a palindrome (76877867).

The spelling of 16434406 in words is "sixteen million, four hundred thirty-four thousand, four hundred six".