40443198 has 16 divisors (see below), whose sum is σ = 80975376. Its totient is φ = 13466240.

The previous prime is 40443149. The next prime is 40443199. The reversal of 40443198 is 89134404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190 + ... + 9542.

It is an arithmetic number, because the mean of its divisors is an integer number (5060961).

Almost surely, 2^40443198 is an apocalyptic number.

40443198 is an abundant number, since it is smaller than the sum of its proper divisors (40532178).

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

40443198 is a wasteful number, since it uses less digits than its factorization.

40443198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7419.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40443198 is about 6359.4966781971. The cubic root of 40443198 is about 343.2536493578.

The spelling of 40443198 in words is "forty million, four hundred forty-three thousand, one hundred ninety-eight".