4249743231 has 4 divisors (see below), whose sum is σ = 5666324312. Its totient is φ = 2833162152.

The previous prime is 4249743227. The next prime is 4249743241. The reversal of 4249743231 is 1323479424.

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

It is not a de Polignac number, because 4249743231 - 2² = 4249743227 is a prime.

It is a super-2 number, since 2×4249743231² = 36120635058860638722, 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 4249743231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4249743241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708290536 + ... + 708290541.

It is an arithmetic number, because the mean of its divisors is an integer number (1416581078).

Almost surely, 2^4249743231 is an apocalyptic number.

4249743231 is a deficient number, since it is larger than the sum of its proper divisors (1416581081).

4249743231 is a wasteful number, since it uses less digits than its factorization.

4249743231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416581080.

The product of its digits is 145152, while the sum is 39.

The square root of 4249743231 is about 65190.0546939485. The cubic root of 4249743231 is about 1619.7732791236.

The spelling of 4249743231 in words is "four billion, two hundred forty-nine million, seven hundred forty-three thousand, two hundred thirty-one".