40242887252 has 12 divisors (see below), whose sum is σ = 70426827156. Its totient is φ = 20120936640.

The previous prime is 40242887249. The next prime is 40242887299. The reversal of 40242887252 is 25278824204.

It can be written as a sum of positive squares in 2 ways, for example, as 18266603716 + 21976283536 = 135154^2 + 148244^2 .

It is a super-3 number, since 3×40242887252³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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, 94928 + ... + 299160.

It is an arithmetic number, because the mean of its divisors is an integer number (5868902263).

Almost surely, 2^40242887252 is an apocalyptic number.

It is an amenable number.

40242887252 is a deficient number, since it is larger than the sum of its proper divisors (30183939904).

40242887252 is a wasteful number, since it uses less digits than its factorization.

40242887252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253498 (or 253496 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 44.

The spelling of 40242887252 in words is "forty billion, two hundred forty-two million, eight hundred eighty-seven thousand, two hundred fifty-two".