40312311442 has 8 divisors (see below), whose sum is σ = 65119887756. Its totient is φ = 18605682192.

The previous prime is 40312311437. The next prime is 40312311449. The reversal of 40312311442 is 24411321304.

It can be written as a sum of positive squares in 2 ways, for example, as 40060422801 + 251888641 = 200151^2 + 15871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40312311449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775236733 + ... + 775236784.

Almost surely, 2^40312311442 is an apocalyptic number.

40312311442 is a deficient number, since it is larger than the sum of its proper divisors (24807576314).

40312311442 is a wasteful number, since it uses less digits than its factorization.

40312311442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550473532.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40312311442 its reverse (24411321304), we get a palindrome (64723632746).

The spelling of 40312311442 in words is "forty billion, three hundred twelve million, three hundred eleven thousand, four hundred forty-two".