40204423532 has 48 divisors (see below), whose sum is σ = 87403518720. Its totient is φ = 15756386112.

The previous prime is 40204423507. The next prime is 40204423543. The reversal of 40204423532 is 23532440204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40204423495 and 40204423504.

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 15 ways as a sum of consecutive naturals, for example, 477182 + ... + 555077.

It is an arithmetic number, because the mean of its divisors is an integer number (1820906640).

Almost surely, 2^40204423532 is an apocalyptic number.

It is an amenable number.

40204423532 is an abundant number, since it is smaller than the sum of its proper divisors (47199095188).

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

40204423532 is a wasteful number, since it uses less digits than its factorization.

40204423532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032390 (or 1032388 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 40204423532 its reverse (23532440204), we get a palindrome (63736863736).

The spelling of 40204423532 in words is "forty billion, two hundred four million, four hundred twenty-three thousand, five hundred thirty-two".