198044940 has 24 divisors (see below), whose sum is σ = 554526000. Its totient is φ = 52811968.

The previous prime is 198044939. The next prime is 198044947. The reversal of 198044940 is 49440891.

It is not an unprimeable number, because it can be changed into a prime (198044947) 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, 1650315 + ... + 1650434.

It is an arithmetic number, because the mean of its divisors is an integer number (23105250).

Almost surely, 2^198044940 is an apocalyptic number.

198044940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198044940 is an abundant number, since it is smaller than the sum of its proper divisors (356481060).

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

198044940 is a wasteful number, since it uses less digits than its factorization.

198044940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300761 (or 3300759 counting only the distinct ones).

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

The square root of 198044940 is about 14072.8440622356. The cubic root of 198044940 is about 582.8917612423.

The spelling of 198044940 in words is "one hundred ninety-eight million, forty-four thousand, nine hundred forty".