4040342531 has 4 divisors (see below), whose sum is σ = 4040640864. Its totient is φ = 4040044200.

The previous prime is 4040342521. The next prime is 4040342549. The reversal of 4040342531 is 1352430404.

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 4040342531 - 2²² = 4036148227 is a prime.

It is a super-2 number, since 2×4040342531² = 32648735535614971922, 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 4040342531.

It is not an unprimeable number, because it can be changed into a prime (4040342521) 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, 127835 + ... + 156276.

It is an arithmetic number, because the mean of its divisors is an integer number (1010160216).

Almost surely, 2^4040342531 is an apocalyptic number.

4040342531 is a deficient number, since it is larger than the sum of its proper divisors (298333).

4040342531 is a wasteful number, since it uses less digits than its factorization.

4040342531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298332.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 4040342531 is about 63563.6887774773. The cubic root of 4040342531 is about 1592.7198586789.

Adding to 4040342531 its reverse (1352430404), we get a palindrome (5392772935).

The spelling of 4040342531 in words is "four billion, forty million, three hundred forty-two thousand, five hundred thirty-one".