40291029382 has 4 divisors (see below), whose sum is σ = 60436544076. Its totient is φ = 20145514690.

The previous prime is 40291029323. The next prime is 40291029391. The reversal of 40291029382 is 28392019204.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40291029382² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10072757344 + ... + 10072757347.

It is an arithmetic number, because the mean of its divisors is an integer number (15109136019).

Almost surely, 2^40291029382 is an apocalyptic number.

40291029382 is a deficient number, since it is larger than the sum of its proper divisors (20145514694).

40291029382 is a wasteful number, since it uses less digits than its factorization.

40291029382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20145514693.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 40291029382 in words is "forty billion, two hundred ninety-one million, twenty-nine thousand, three hundred eighty-two".