40868390 has 16 divisors (see below), whose sum is σ = 75358080. Its totient is φ = 15948480.

The previous prime is 40868389. The next prime is 40868413. The reversal of 40868390 is 9386804.

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, 49430 + ... + 50249.

It is an arithmetic number, because the mean of its divisors is an integer number (4709880).

Almost surely, 2^40868390 is an apocalyptic number.

40868390 is a deficient number, since it is larger than the sum of its proper divisors (34489690).

40868390 is a wasteful number, since it uses less digits than its factorization.

40868390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99727.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 40868390 is about 6392.8389624642. The cubic root of 40868390 is about 344.4523693016.

The spelling of 40868390 in words is "forty million, eight hundred sixty-eight thousand, three hundred ninety".