40320400342 has 8 divisors (see below), whose sum is σ = 60486554232. Its totient is φ = 20158215600.

The previous prime is 40320400333. The next prime is 40320400381. The reversal of 40320400342 is 24300402304.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 966759 + ... + 1007602.

It is an arithmetic number, because the mean of its divisors is an integer number (7560819279).

Almost surely, 2^40320400342 is an apocalyptic number.

40320400342 is a deficient number, since it is larger than the sum of its proper divisors (20166153890).

40320400342 is a wasteful number, since it uses less digits than its factorization.

40320400342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984574.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 40320400342 its reverse (24300402304), we get a palindrome (64620802646).

The spelling of 40320400342 in words is "forty billion, three hundred twenty million, four hundred thousand, three hundred forty-two".