40542343252 has 12 divisors (see below), whose sum is σ = 71004409056. Its totient is φ = 20255369240.

The previous prime is 40542343229. The next prime is 40542343253. The reversal of 40542343252 is 25234324504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40542343253) 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, 3944824 + ... + 3955087.

It is an arithmetic number, because the mean of its divisors is an integer number (5917034088).

Almost surely, 2^40542343252 is an apocalyptic number.

It is an amenable number.

40542343252 is a deficient number, since it is larger than the sum of its proper divisors (30462065804).

40542343252 is a wasteful number, since it uses less digits than its factorization.

40542343252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7901198 (or 7901196 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 40542343252 its reverse (25234324504), we get a palindrome (65776667756).

The spelling of 40542343252 in words is "forty billion, five hundred forty-two million, three hundred forty-three thousand, two hundred fifty-two".