40342122 has 24 divisors (see below), whose sum is σ = 92550276. Its totient is φ = 12656256.

The previous prime is 40342117. The next prime is 40342123. The reversal of 40342122 is 22124304.

40342122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40182921 + 159201 = 6339^2 + 399^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40342095 and 40342104.

It is not an unprimeable number, because it can be changed into a prime (40342123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65613 + ... + 66224.

Almost surely, 2^40342122 is an apocalyptic number.

40342122 is an abundant number, since it is smaller than the sum of its proper divisors (52208154).

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

40342122 is a wasteful number, since it uses less digits than its factorization.

40342122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131862 (or 131859 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40342122 is about 6351.5448514515. The cubic root of 40342122 is about 342.9674566160.

Adding to 40342122 its reverse (22124304), we get a palindrome (62466426).

The spelling of 40342122 in words is "forty million, three hundred forty-two thousand, one hundred twenty-two".