40243545942 has 32 divisors (see below), whose sum is σ = 81297177984. Its totient is φ = 13279680000.

The previous prime is 40243545929. The next prime is 40243545943. The reversal of 40243545942 is 24954534204.

It is a junction number, because it is equal to n+sod(n) for n = 40243545894 and 40243545903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243545943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909942 + ... + 953142.

It is an arithmetic number, because the mean of its divisors is an integer number (2540536812).

Almost surely, 2^40243545942 is an apocalyptic number.

40243545942 is an abundant number, since it is smaller than the sum of its proper divisors (41053632042).

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

40243545942 is a wasteful number, since it uses less digits than its factorization.

40243545942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44764.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 40243545942 in words is "forty billion, two hundred forty-three million, five hundred forty-five thousand, nine hundred forty-two".