40426805028 has 24 divisors (see below), whose sum is σ = 94636481632. Its totient is φ = 13431705984.

The previous prime is 40426805021. The next prime is 40426805047. The reversal of 40426805028 is 82050862404.

It is not an unprimeable number, because it can be changed into a prime (40426805021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5483125 + ... + 5490492.

Almost surely, 2^40426805028 is an apocalyptic number.

It is an amenable number.

40426805028 is an abundant number, since it is smaller than the sum of its proper divisors (54209676604).

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

40426805028 is a wasteful number, since it uses less digits than its factorization.

40426805028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10973931 (or 10973929 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 40426805028 in words is "forty billion, four hundred twenty-six million, eight hundred five thousand, twenty-eight".