40342889420 has 12 divisors (see below), whose sum is σ = 84720067824. Its totient is φ = 16137155760.

The previous prime is 40342889413. The next prime is 40342889437. The reversal of 40342889420 is 2498824304.

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, 1008572216 + ... + 1008572255.

It is an arithmetic number, because the mean of its divisors is an integer number (7060005652).

Almost surely, 2^40342889420 is an apocalyptic number.

It is an amenable number.

40342889420 is an abundant number, since it is smaller than the sum of its proper divisors (44377178404).

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

40342889420 is a wasteful number, since it uses less digits than its factorization.

40342889420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017144480 (or 2017144478 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 40342889420 in words is "forty billion, three hundred forty-two million, eight hundred eighty-nine thousand, four hundred twenty".