40286398 has 8 divisors (see below), whose sum is σ = 60529392. Its totient is φ = 20109936.

The previous prime is 40286387. The next prime is 40286401. The reversal of 40286398 is 89368204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40286398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15090 + ... + 17557.

It is an arithmetic number, because the mean of its divisors is an integer number (7566174).

Almost surely, 2^40286398 is an apocalyptic number.

40286398 is a deficient number, since it is larger than the sum of its proper divisors (20242994).

40286398 is a wasteful number, since it uses less digits than its factorization.

40286398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33266.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 40286398 is about 6347.1566862651. The cubic root of 40286398 is about 342.8094718278.

The spelling of 40286398 in words is "forty million, two hundred eighty-six thousand, three hundred ninety-eight".