4329138731 has 4 divisors (see below), whose sum is σ = 4329423864. Its totient is φ = 4328853600.

The previous prime is 4329138701. The next prime is 4329138767. The reversal of 4329138731 is 1378319234.

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 4329138731 - 2²² = 4324944427 is a prime.

It is a super-2 number, since 2×4329138731² = 37482884304488580722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4329138701) 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, 118430 + ... + 150611.

It is an arithmetic number, because the mean of its divisors is an integer number (1082355966).

Almost surely, 2^4329138731 is an apocalyptic number.

4329138731 is a deficient number, since it is larger than the sum of its proper divisors (285133).

4329138731 is a wasteful number, since it uses less digits than its factorization.

4329138731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285132.

The product of its digits is 108864, while the sum is 41.

The square root of 4329138731 is about 65796.1908547904. The cubic root of 4329138731 is about 1629.7982024008.

The spelling of 4329138731 in words is "four billion, three hundred twenty-nine million, one hundred thirty-eight thousand, seven hundred thirty-one".