40240120422 has 16 divisors (see below), whose sum is σ = 82351874880. Its totient is φ = 13101434472.

The previous prime is 40240120409. The next prime is 40240120429. The reversal of 40240120422 is 22402104204.

It is a super-2 number, since 2×40240120422² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240120429) 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, 77984472 + ... + 77984987.

It is an arithmetic number, because the mean of its divisors is an integer number (5146992180).

Almost surely, 2^40240120422 is an apocalyptic number.

40240120422 is an abundant number, since it is smaller than the sum of its proper divisors (42111754458).

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

40240120422 is a wasteful number, since it uses less digits than its factorization.

40240120422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155969507.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 40240120422 its reverse (22402104204), we get a palindrome (62642224626).

The spelling of 40240120422 in words is "forty billion, two hundred forty million, one hundred twenty thousand, four hundred twenty-two".