40204012252 has 24 divisors (see below), whose sum is σ = 72043695360. Its totient is φ = 19622358000.

The previous prime is 40204012243. The next prime is 40204012271. The reversal of 40204012252 is 25221040204.

It is a super-2 number, since 2×40204012252² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 210874 + ... + 353377.

It is an arithmetic number, because the mean of its divisors is an integer number (3001820640).

Almost surely, 2^40204012252 is an apocalyptic number.

It is an amenable number.

40204012252 is a deficient number, since it is larger than the sum of its proper divisors (31839683108).

40204012252 is a wasteful number, since it uses less digits than its factorization.

40204012252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564681 (or 564679 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 40204012252 its reverse (25221040204), we get a palindrome (65425052456).

The spelling of 40204012252 in words is "forty billion, two hundred four million, twelve thousand, two hundred fifty-two".