16431441 has 32 divisors (see below), whose sum is σ = 24769920. Its totient is φ = 9621504.

The previous prime is 16431421. The next prime is 16431449. The reversal of 16431441 is 14413461.

It is not a de Polignac number, because 16431441 - 2⁶ = 16431377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16431449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85041 + ... + 85233.

It is an arithmetic number, because the mean of its divisors is an integer number (774060).

Almost surely, 2^16431441 is an apocalyptic number.

It is an amenable number.

16431441 is a deficient number, since it is larger than the sum of its proper divisors (8338479).

16431441 is a wasteful number, since it uses less digits than its factorization.

16431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its digits is 1152, while the sum is 24.

The square root of 16431441 is about 4053.5713882945. The cubic root of 16431441 is about 254.2290749673.

The spelling of 16431441 in words is "sixteen million, four hundred thirty-one thousand, four hundred forty-one".