40294078 has 16 divisors (see below), whose sum is σ = 66036096. Its totient is φ = 18287640.

The previous prime is 40294069. The next prime is 40294081. The reversal of 40294078 is 87049204.

It is a happy number.

It is a super-2 number, since 2×40294078² = 3247225443740168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22525 + ... + 24247.

It is an arithmetic number, because the mean of its divisors is an integer number (4127256).

Almost surely, 2^40294078 is an apocalyptic number.

40294078 is a deficient number, since it is larger than the sum of its proper divisors (25742018).

40294078 is a wasteful number, since it uses less digits than its factorization.

40294078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 40294078 is about 6347.7616527403. The cubic root of 40294078 is about 342.8312542787.

The spelling of 40294078 in words is "forty million, two hundred ninety-four thousand, seventy-eight".