40432221000 has 96 divisors (see below), whose sum is σ = 136660937400. Its totient is φ = 10781923200.

The previous prime is 40432220999. The next prime is 40432221007. The reversal of 40432221000 is 12223404.

It can be written as a sum of positive squares in 4 ways, for example, as 20393553636 + 20038667364 = 142806^2 + 141558^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40432221007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2237235 + ... + 2255234.

Almost surely, 2^40432221000 is an apocalyptic number.

40432221000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40432221000 is an abundant number, since it is smaller than the sum of its proper divisors (96228716400).

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

40432221000 is a wasteful number, since it uses less digits than its factorization.

40432221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492496 (or 4492479 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40432221000 its reverse (12223404), we get a palindrome (40444444404).

The spelling of 40432221000 in words is "forty billion, four hundred thirty-two million, two hundred twenty-one thousand".