40408023828 has 48 divisors (see below), whose sum is σ = 97574400000. Its totient is φ = 12999842688.

The previous prime is 40408023793. The next prime is 40408023841. The reversal of 40408023828 is 82832080404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 935533 + ... + 977771.

It is an arithmetic number, because the mean of its divisors is an integer number (2032800000).

Almost surely, 2^40408023828 is an apocalyptic number.

It is an amenable number.

40408023828 is an abundant number, since it is smaller than the sum of its proper divisors (57166376172).

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

40408023828 is a wasteful number, since it uses less digits than its factorization.

40408023828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45024 (or 45022 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 39.

The spelling of 40408023828 in words is "forty billion, four hundred eight million, twenty-three thousand, eight hundred twenty-eight".