40432221001 has 4 divisors (see below), whose sum is σ = 40442806404. Its totient is φ = 40421635600.

The previous prime is 40432220999. The next prime is 40432221007. The reversal of 40432221001 is 10012223404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27390581001 + 13041640000 = 165501^2 + 114200^2 .

It is a cyclic number.

It is not a de Polignac number, because 40432221001 - 2¹ = 40432220999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40432221001.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5286970 + ... + 5294611.

It is an arithmetic number, because the mean of its divisors is an integer number (10110701601).

Almost surely, 2^40432221001 is an apocalyptic number.

It is an amenable number.

40432221001 is a deficient number, since it is larger than the sum of its proper divisors (10585403).

40432221001 is a wasteful number, since it uses less digits than its factorization.

40432221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10585402.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40432221001 its reverse (10012223404), we get a palindrome (50444444405).

The spelling of 40432221001 in words is "forty billion, four hundred thirty-two million, two hundred twenty-one thousand, one".