29144431 has 4 divisors (see below), whose sum is σ = 29239672. Its totient is φ = 29049192.

The previous prime is 29144429. The next prime is 29144441. The reversal of 29144431 is 13444192.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29144431 - 2¹ = 29144429 is a prime.

It is a super-2 number, since 2×29144431² = 1698795716627522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29144431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29144441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47160 + ... + 47773.

It is an arithmetic number, because the mean of its divisors is an integer number (7309918).

Almost surely, 2^29144431 is an apocalyptic number.

29144431 is a deficient number, since it is larger than the sum of its proper divisors (95241).

29144431 is an equidigital number, since it uses as much as digits as its factorization.

29144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95240.

The product of its digits is 3456, while the sum is 28.

The square root of 29144431 is about 5398.5582334546. The cubic root of 29144431 is about 307.7408816055.

The spelling of 29144431 in words is "twenty-nine million, one hundred forty-four thousand, four hundred thirty-one".