4054239731 has 4 divisors (see below), whose sum is σ = 4080063072. Its totient is φ = 4028416392.

The previous prime is 4054239727. The next prime is 4054239733. The reversal of 4054239731 is 1379324504.

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 4054239731 - 2² = 4054239727 is a prime.

It is a super-2 number, since 2×4054239731² = 32873719592837904722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4054239733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12911435 + ... + 12911748.

It is an arithmetic number, because the mean of its divisors is an integer number (1020015768).

Almost surely, 2^4054239731 is an apocalyptic number.

4054239731 is a deficient number, since it is larger than the sum of its proper divisors (25823341).

4054239731 is a wasteful number, since it uses less digits than its factorization.

4054239731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25823340.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 4054239731 is about 63672.9120662782. The cubic root of 4054239731 is about 1594.5438803469.

The spelling of 4054239731 in words is "four billion, fifty-four million, two hundred thirty-nine thousand, seven hundred thirty-one".