40122042342 has 16 divisors (see below), whose sum is σ = 80252787312. Its totient is φ = 13372563680.

The previous prime is 40122042319. The next prime is 40122042343. The reversal of 40122042342 is 24324022104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122042343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301893 + ... + 413984.

It is an arithmetic number, because the mean of its divisors is an integer number (5015799207).

Almost surely, 2^40122042342 is an apocalyptic number.

40122042342 is an abundant number, since it is smaller than the sum of its proper divisors (40130744970).

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

40122042342 is a wasteful number, since it uses less digits than its factorization.

40122042342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725223.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40122042342 its reverse (24324022104), we get a palindrome (64446064446).

The spelling of 40122042342 in words is "forty billion, one hundred twenty-two million, forty-two thousand, three hundred forty-two".