40520233012 has 24 divisors (see below), whose sum is σ = 81135520256. Its totient is φ = 17345445408.

The previous prime is 40520233007. The next prime is 40520233037. The reversal of 40520233012 is 21033202504.

It is a super-4 number, since 4×40520233012⁴ (a number of 44 digits) contains 4444 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, 824388 + ... + 872155.

Almost surely, 2^40520233012 is an apocalyptic number.

It is an amenable number.

40520233012 is an abundant number, since it is smaller than the sum of its proper divisors (40615287244).

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

40520233012 is a wasteful number, since it uses less digits than its factorization.

40520233012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697407 (or 1697405 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 40520233012 its reverse (21033202504), we get a palindrome (61553435516).

The spelling of 40520233012 in words is "forty billion, five hundred twenty million, two hundred thirty-three thousand, twelve".