40188857830242 has 32 divisors (see below), whose sum is σ = 89122236151104. Its totient is φ = 11978795179200.

The previous prime is 40188857830241. The next prime is 40188857830249. The reversal of 40188857830242 is 24203875888104.

It is not an unprimeable number, because it can be changed into a prime (40188857830241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4991160633 + ... + 4991168684.

It is an arithmetic number, because the mean of its divisors is an integer number (2785069879722).

Almost surely, 2^{40188857830242} is an apocalyptic number.

40188857830242 is an abundant number, since it is smaller than the sum of its proper divisors (48933378320862).

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

40188857830242 is a wasteful number, since it uses less digits than its factorization.

40188857830242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9982329394.

The product of its (nonzero) digits is 27525120, while the sum is 60.

The spelling of 40188857830242 in words is "forty trillion, one hundred eighty-eight billion, eight hundred fifty-seven million, eight hundred thirty thousand, two hundred forty-two".