40198944 has 24 divisors (see below), whose sum is σ = 105522480. Its totient is φ = 13399616.

The previous prime is 40198919. The next prime is 40198967. The reversal of 40198944 is 44989104.

It is a tau number, because it is divible by the number of its divisors (24).

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, 209274 + ... + 209465.

It is an arithmetic number, because the mean of its divisors is an integer number (4396770).

Almost surely, 2^40198944 is an apocalyptic number.

It is an amenable number.

40198944 is an abundant number, since it is smaller than the sum of its proper divisors (65323536).

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

40198944 is a wasteful number, since it uses less digits than its factorization.

40198944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418752 (or 418744 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 40198944 is about 6340.2637169127. The cubic root of 40198944 is about 342.5612343673.

The spelling of 40198944 in words is "forty million, one hundred ninety-eight thousand, nine hundred forty-four".