4040427331 has 4 divisors (see below), whose sum is σ = 4080431664. Its totient is φ = 4000423000.

The previous prime is 4040427323. The next prime is 4040427337. The reversal of 4040427331 is 1337240404.

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 4040427331 - 2³ = 4040427323 is a prime.

It is a super-2 number, since 2×4040427331² = 32650106034183567122, 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 4040427331.

It is not an unprimeable number, because it can be changed into a prime (4040427337) 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, 20002015 + ... + 20002216.

It is an arithmetic number, because the mean of its divisors is an integer number (1020107916).

Almost surely, 2^4040427331 is an apocalyptic number.

4040427331 is a deficient number, since it is larger than the sum of its proper divisors (40004333).

4040427331 is a wasteful number, since it uses less digits than its factorization.

4040427331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40004332.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 4040427331 is about 63564.3558214822. The cubic root of 4040427331 is about 1592.7310014387.

Adding to 4040427331 its reverse (1337240404), we get a palindrome (5377667735).

The spelling of 4040427331 in words is "four billion, forty million, four hundred twenty-seven thousand, three hundred thirty-one".