40043231052 has 48 divisors (see below), whose sum is σ = 104414292864. Its totient is φ = 11838352000.

The previous prime is 40043231047. The next prime is 40043231057. The reversal of 40043231052 is 25013234004.

It is an interprime number because it is at equal distance from previous prime (40043231047) and next prime (40043231057).

It is not an unprimeable number, because it can be changed into a prime (40043231057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3694074 + ... + 3704897.

It is an arithmetic number, because the mean of its divisors is an integer number (2175297768).

Almost surely, 2^40043231052 is an apocalyptic number.

It is an amenable number.

40043231052 is an abundant number, since it is smaller than the sum of its proper divisors (64371061812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40043231052 is a wasteful number, since it uses less digits than its factorization.

40043231052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399030 (or 7399028 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 40043231052 its reverse (25013234004), we get a palindrome (65056465056).

The spelling of 40043231052 in words is "forty billion, forty-three million, two hundred thirty-one thousand, fifty-two".