40293808 has 20 divisors (see below), whose sum is σ = 82662120. Its totient is φ = 18961664.

The previous prime is 40293697. The next prime is 40293809. The reversal of 40293808 is 80839204.

40293808 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 (34).

It is not an unprimeable number, because it can be changed into a prime (40293809) by changing a digit.

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, 73798 + ... + 74341.

It is an arithmetic number, because the mean of its divisors is an integer number (4133106).

Almost surely, 2^40293808 is an apocalyptic number.

It is an amenable number.

40293808 is an abundant number, since it is smaller than the sum of its proper divisors (42368312).

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

40293808 is a wasteful number, since it uses less digits than its factorization.

40293808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148164 (or 148158 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 40293808 is about 6347.7403853655. The cubic root of 40293808 is about 342.8304885364.

The spelling of 40293808 in words is "forty million, two hundred ninety-three thousand, eight hundred eight".