40322023444 has 12 divisors (see below), whose sum is σ = 74714337684. Its totient is φ = 18975069824.

The previous prime is 40322023439. The next prime is 40322023453. The reversal of 40322023444 is 44432022304.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29881271044 + 10440752400 = 172862^2 + 102180^2 .

It is a super-2 number, since 2×40322023444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296485399 + ... + 296485534.

It is an arithmetic number, because the mean of its divisors is an integer number (6226194807).

Almost surely, 2^40322023444 is an apocalyptic number.

It is an amenable number.

40322023444 is a deficient number, since it is larger than the sum of its proper divisors (34392314240).

40322023444 is a wasteful number, since it uses less digits than its factorization.

40322023444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592970954 (or 592970952 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 40322023444 its reverse (44432022304), we get a palindrome (84754045748).

The spelling of 40322023444 in words is "forty billion, three hundred twenty-two million, twenty-three thousand, four hundred forty-four".