40254879582 has 40 divisors (see below), whose sum is σ = 90229658376. Its totient is φ = 13413992688.

The previous prime is 40254879569. The next prime is 40254879583. The reversal of 40254879582 is 28597845204.

40254879582 is a `hidden beast` number, since 4 + 0 + 2 + 54 + 8 + 7 + 9 + 582 = 666.

It is a super-2 number, since 2×40254879582² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40254879583) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 488793 + ... + 565179.

Almost surely, 2^40254879582 is an apocalyptic number.

40254879582 is an abundant number, since it is smaller than the sum of its proper divisors (49974778794).

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

40254879582 is a wasteful number, since it uses less digits than its factorization.

40254879582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79654 (or 79645 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 40254879582 in words is "forty billion, two hundred fifty-four million, eight hundred seventy-nine thousand, five hundred eighty-two".