40820198 has 8 divisors (see below), whose sum is σ = 61258680. Its totient is φ = 20400640.

The previous prime is 40820183. The next prime is 40820231. The reversal of 40820198 is 89102804.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (7657335).

Almost surely, 2^40820198 is an apocalyptic number.

40820198 is a deficient number, since it is larger than the sum of its proper divisors (20438482).

40820198 is a wasteful number, since it uses less digits than its factorization.

40820198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 40820198 is about 6389.0686332203. The cubic root of 40820198 is about 344.3169233192.

The spelling of 40820198 in words is "forty million, eight hundred twenty thousand, one hundred ninety-eight".