40344402142 has 32 divisors (see below), whose sum is σ = 69925127904. Its totient is φ = 17253811200.

The previous prime is 40344402127. The next prime is 40344402181. The reversal of 40344402142 is 24120444304.

It is a self number, because there is not a number n which added to its sum of digits gives 40344402142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200042 + ... + 1233202.

It is an arithmetic number, because the mean of its divisors is an integer number (2185160247).

Almost surely, 2^40344402142 is an apocalyptic number.

40344402142 is a deficient number, since it is larger than the sum of its proper divisors (29580725762).

40344402142 is a wasteful number, since it uses less digits than its factorization.

40344402142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36444.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40344402142 its reverse (24120444304), we get a palindrome (64464846446).

The spelling of 40344402142 in words is "forty billion, three hundred forty-four million, four hundred two thousand, one hundred forty-two".