40343343142 has 4 divisors (see below), whose sum is σ = 60515014716. Its totient is φ = 20171671570.

The previous prime is 40343343137. The next prime is 40343343167. The reversal of 40343343142 is 24134334304.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10085835784 + ... + 10085835787.

It is an arithmetic number, because the mean of its divisors is an integer number (15128753679).

Almost surely, 2^40343343142 is an apocalyptic number.

40343343142 is a deficient number, since it is larger than the sum of its proper divisors (20171671574).

40343343142 is a wasteful number, since it uses less digits than its factorization.

40343343142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20171671573.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 40343343142 its reverse (24134334304), we get a palindrome (64477677446).

The spelling of 40343343142 in words is "forty billion, three hundred forty-three million, three hundred forty-three thousand, one hundred forty-two".