40142271828 has 24 divisors (see below), whose sum is σ = 93675012480. Its totient is φ = 13379369920.

The previous prime is 40142271803. The next prime is 40142271839. The reversal of 40142271828 is 82817224104.

It is a super-2 number, since 2×40142271828² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49308 + ... + 287603.

It is an arithmetic number, because the mean of its divisors is an integer number (3903125520).

Almost surely, 2^40142271828 is an apocalyptic number.

It is an amenable number.

40142271828 is an abundant number, since it is smaller than the sum of its proper divisors (53532740652).

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

40142271828 is a wasteful number, since it uses less digits than its factorization.

40142271828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346847 (or 346845 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The spelling of 40142271828 in words is "forty billion, one hundred forty-two million, two hundred seventy-one thousand, eight hundred twenty-eight".