40400407340 has 12 divisors (see below), whose sum is σ = 84840855456. Its totient is φ = 16160162928.

The previous prime is 40400407331. The next prime is 40400407381. The reversal of 40400407340 is 4370400404.

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, 1010010164 + ... + 1010010203.

It is an arithmetic number, because the mean of its divisors is an integer number (7070071288).

Almost surely, 2^40400407340 is an apocalyptic number.

It is an amenable number.

40400407340 is an abundant number, since it is smaller than the sum of its proper divisors (44440448116).

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

40400407340 is a wasteful number, since it uses less digits than its factorization.

40400407340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020020376 (or 2020020374 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

Adding to 40400407340 its reverse (4370400404), we get a palindrome (44770807744).

The spelling of 40400407340 in words is "forty billion, four hundred million, four hundred seven thousand, three hundred forty".