40291382 has 16 divisors (see below), whose sum is σ = 64540800. Its totient is φ = 18822720.

The previous prime is 40291379. The next prime is 40291399. The reversal of 40291382 is 28319204.

40291382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

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 in 7 ways as a sum of consecutive naturals, for example, 9407 + ... + 13002.

It is an arithmetic number, because the mean of its divisors is an integer number (4033800).

Almost surely, 2^40291382 is an apocalyptic number.

40291382 is a deficient number, since it is larger than the sum of its proper divisors (24249418).

40291382 is a wasteful number, since it uses less digits than its factorization.

40291382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22471.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40291382 is about 6347.5492908681. The cubic root of 40291382 is about 342.8236080461.

The spelling of 40291382 in words is "forty million, two hundred ninety-one thousand, three hundred eighty-two".