40805283840 has 96 divisors (see below), whose sum is σ = 130545127440. Its totient is φ = 10881400832.

The previous prime is 40805283803. The next prime is 40805283853. The reversal of 40805283840 is 4838250804.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40805283792 and 40805283801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633429 + ... + 694868.

Almost surely, 2^40805283840 is an apocalyptic number.

40805283840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40805283840 is an abundant number, since it is smaller than the sum of its proper divisors (89739843600).

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

40805283840 is a wasteful number, since it uses less digits than its factorization.

40805283840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328327 (or 1328307 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 40805283840 in words is "forty billion, eight hundred five million, two hundred eighty-three thousand, eight hundred forty".