40442200231 has 4 divisors (see below), whose sum is σ = 40447120672. Its totient is φ = 40437279792.

The previous prime is 40442200171. The next prime is 40442200297. The reversal of 40442200231 is 13200224404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40442200231 - 2⁷ = 40442200103 is a prime.

It is a super-2 number, since 2×40442200231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442201231) 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, 2447871 + ... + 2464336.

It is an arithmetic number, because the mean of its divisors is an integer number (10111780168).

Almost surely, 2^40442200231 is an apocalyptic number.

40442200231 is a deficient number, since it is larger than the sum of its proper divisors (4920441).

40442200231 is an equidigital number, since it uses as much as digits as its factorization.

40442200231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920440.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40442200231 its reverse (13200224404), we get a palindrome (53642424635).

The spelling of 40442200231 in words is "forty billion, four hundred forty-two million, two hundred thousand, two hundred thirty-one".