40322310440 has 32 divisors (see below), whose sum is σ = 90860066280. Its totient is φ = 16104947712.

The previous prime is 40322310409. The next prime is 40322310481. The reversal of 40322310440 is 4401322304.

It can be written as a sum of positive squares in 4 ways, for example, as 30851517316 + 9470793124 = 175646^2 + 97318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722009 + ... + 775848.

Almost surely, 2^40322310440 is an apocalyptic number.

40322310440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40322310440 is an abundant number, since it is smaller than the sum of its proper divisors (50537755840).

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

40322310440 is a wasteful number, since it uses less digits than its factorization.

40322310440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498541 (or 1498537 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40322310440 its reverse (4401322304), we get a palindrome (44723632744).

The spelling of 40322310440 in words is "forty billion, three hundred twenty-two million, three hundred ten thousand, four hundred forty".