40531036028 has 24 divisors (see below), whose sum is σ = 83857317600. Its totient is φ = 16771462848.

The previous prime is 40531036027. The next prime is 40531036109. The reversal of 40531036028 is 82063013504.

It is a junction number, because it is equal to n+sod(n) for n = 40531035985 and 40531036003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40531036027) 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, 24956723 + ... + 24958346.

It is an arithmetic number, because the mean of its divisors is an integer number (3494054900).

Almost surely, 2^40531036028 is an apocalyptic number.

It is an amenable number.

40531036028 is an abundant number, since it is smaller than the sum of its proper divisors (43326281572).

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

40531036028 is a wasteful number, since it uses less digits than its factorization.

40531036028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49915109 (or 49915107 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 40531036028 in words is "forty billion, five hundred thirty-one million, thirty-six thousand, twenty-eight".