16434427 has 8 divisors (see below), whose sum is σ = 17442000. Its totient is φ = 15431424.

The previous prime is 16434413. The next prime is 16434463. The reversal of 16434427 is 72443461.

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

It is a cyclic number.

It is not a de Polignac number, because 16434427 - 2²³ = 8045819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16437427) 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, 8824 + ... + 10522.

It is an arithmetic number, because the mean of its divisors is an integer number (2180250).

Almost surely, 2^16434427 is an apocalyptic number.

16434427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16434427 is a deficient number, since it is larger than the sum of its proper divisors (1007573).

16434427 is a wasteful number, since it uses less digits than its factorization.

16434427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its digits is 16128, while the sum is 31.

The square root of 16434427 is about 4053.9396887472. The cubic root of 16434427 is about 254.2444739421.

Adding to 16434427 its reverse (72443461), we get a palindrome (88877888).

It can be divided in two parts, 16434 and 427, that added together give a palindrome (16861).

The spelling of 16434427 in words is "sixteen million, four hundred thirty-four thousand, four hundred twenty-seven".