40731342 has 8 divisors (see below), whose sum is σ = 81462696. Its totient is φ = 13577112.

The previous prime is 40731331. The next prime is 40731389. The reversal of 40731342 is 24313704.

40731342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

40731342 is an admirable number.

It is a super-2 number, since 2×40731342² = 3318084442241928, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 3394273 + ... + 3394284.

It is an arithmetic number, because the mean of its divisors is an integer number (10182837).

Almost surely, 2^40731342 is an apocalyptic number.

40731342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40731342 is a wasteful number, since it uses less digits than its factorization.

40731342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788562.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 40731342 is about 6382.1110927341. Note that the first 3 decimals coincide. The cubic root of 40731342 is about 344.0669094205.

The spelling of 40731342 in words is "forty million, seven hundred thirty-one thousand, three hundred forty-two".