40352120142 has 32 divisors (see below), whose sum is σ = 86297625504. Its totient is φ = 12534144000.

The previous prime is 40352120141. The next prime is 40352120147. The reversal of 40352120142 is 24102125304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40352120141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1948159 + ... + 1968762.

It is an arithmetic number, because the mean of its divisors is an integer number (2696800797).

Almost surely, 2^40352120142 is an apocalyptic number.

40352120142 is an abundant number, since it is smaller than the sum of its proper divisors (45945505362).

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

40352120142 is a wasteful number, since it uses less digits than its factorization.

40352120142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917044.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 40352120142 its reverse (24102125304), we get a palindrome (64454245446).

The spelling of 40352120142 in words is "forty billion, three hundred fifty-two million, one hundred twenty thousand, one hundred forty-two".