40840198 has 8 divisors (see below), whose sum is σ = 70011792. Its totient is φ = 17502936.

The previous prime is 40840183. The next prime is 40840271. The reversal of 40840198 is 89104804.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458565 + ... + 1458592.

It is an arithmetic number, because the mean of its divisors is an integer number (8751474).

Almost surely, 2^40840198 is an apocalyptic number.

40840198 is a deficient number, since it is larger than the sum of its proper divisors (29171594).

40840198 is a wasteful number, since it uses less digits than its factorization.

40840198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917166.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 40840198 is about 6390.6336149086. The cubic root of 40840198 is about 344.3731472348.

The spelling of 40840198 in words is "forty million, eight hundred forty thousand, one hundred ninety-eight".