40293378 has 24 divisors (see below), whose sum is σ = 91099008. Its totient is φ = 12847032.

The previous prime is 40293377. The next prime is 40293391. The reversal of 40293378 is 87339204.

It is not an unprimeable number, because it can be changed into a prime (40293377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48250 + ... + 49077.

It is an arithmetic number, because the mean of its divisors is an integer number (3795792).

Almost surely, 2^40293378 is an apocalyptic number.

40293378 is an abundant number, since it is smaller than the sum of its proper divisors (50805630).

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

40293378 is a wasteful number, since it uses less digits than its factorization.

40293378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97358 (or 97355 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 40293378 is about 6347.7065149548. The cubic root of 40293378 is about 342.8292690137.

The spelling of 40293378 in words is "forty million, two hundred ninety-three thousand, three hundred seventy-eight".