198920370 has 48 divisors (see below), whose sum is σ = 524764800. Its totient is φ = 48222240.

The previous prime is 198920369. The next prime is 198920377. The reversal of 198920370 is 73029891.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198920377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23770 + ... + 31029.

It is an arithmetic number, because the mean of its divisors is an integer number (10932600).

Almost surely, 2^198920370 is an apocalyptic number.

198920370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198920370 is an abundant number, since it is smaller than the sum of its proper divisors (325844430).

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

198920370 is a wasteful number, since it uses less digits than its factorization.

198920370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54831 (or 54820 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 198920370 is about 14103.9132867442. The cubic root of 198920370 is about 583.7493627213.

The spelling of 198920370 in words is "one hundred ninety-eight million, nine hundred twenty thousand, three hundred seventy".