40286705984 has 56 divisors (see below), whose sum is σ = 93088407168. Its totient is φ = 16939952640.

The previous prime is 40286705959. The next prime is 40286705989. The reversal of 40286705984 is 48950768204.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×40286705984² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40286705989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824612 + ... + 872099.

Almost surely, 2^40286705984 is an apocalyptic number.

It is an amenable number.

40286705984 is an abundant number, since it is smaller than the sum of its proper divisors (52801701184).

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

40286705984 is a wasteful number, since it uses less digits than its factorization.

40286705984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696783 (or 1696773 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 40286705984 in words is "forty billion, two hundred eighty-six million, seven hundred five thousand, nine hundred eighty-four".