40842378 has 24 divisors (see below), whose sum is σ = 88767588. Its totient is φ = 13571712.

The previous prime is 40842349. The next prime is 40842397. The reversal of 40842378 is 87324804.

40842378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38601369 + 2241009 = 6213^2 + 1497^2 .

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 11 ways as a sum of consecutive naturals, for example, 2700 + ... + 9432.

Almost surely, 2^40842378 is an apocalyptic number.

40842378 is an abundant number, since it is smaller than the sum of its proper divisors (47925210).

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

40842378 is a wasteful number, since it uses less digits than its factorization.

40842378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078 (or 7075 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 40842378 is about 6390.8041747498. The cubic root of 40842378 is about 344.3792745321.

The spelling of 40842378 in words is "forty million, eight hundred forty-two thousand, three hundred seventy-eight".