40456985440 has 48 divisors (see below), whose sum is σ = 96888966048. Its totient is φ = 15961107456.

The previous prime is 40456985417. The next prime is 40456985447. The reversal of 40456985440 is 4458965404.

40456985440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40456985447) 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, 1720212 + ... + 1743571.

It is an arithmetic number, because the mean of its divisors is an integer number (2018520126).

Almost surely, 2^40456985440 is an apocalyptic number.

40456985440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40456985440 is an abundant number, since it is smaller than the sum of its proper divisors (56431980608).

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

40456985440 is a wasteful number, since it uses less digits than its factorization.

40456985440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463871 (or 3463863 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 40456985440 in words is "forty billion, four hundred fifty-six million, nine hundred eighty-five thousand, four hundred forty".