40115782992 has 20 divisors (see below), whose sum is σ = 103632439520. Its totient is φ = 13371927648.

The previous prime is 40115782979. The next prime is 40115782999. The reversal of 40115782992 is 29928751104.

It is a happy number.

It is a super-2 number, since 2×40115782992² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 835745479 = 40115782992 / (4 + 0 + 1 + 1 + 5 + 7 + 8 + 2 + 9 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40115782999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417872692 + ... + 417872787.

It is an arithmetic number, because the mean of its divisors is an integer number (5181621976).

Almost surely, 2^40115782992 is an apocalyptic number.

It is an amenable number.

40115782992 is an abundant number, since it is smaller than the sum of its proper divisors (63516656528).

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

40115782992 is a wasteful number, since it uses less digits than its factorization.

40115782992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835745490 (or 835745484 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 40115782992 in words is "forty billion, one hundred fifteen million, seven hundred eighty-two thousand, nine hundred ninety-two".