920187198 has 96 divisors (see below), whose sum is σ = 2379386880. Its totient is φ = 251475840.

The previous prime is 920187127. The next prime is 920187209. The reversal of 920187198 is 891781029.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346311 + ... + 348957.

It is an arithmetic number, because the mean of its divisors is an integer number (24785280).

Almost surely, 2^920187198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 920187198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189693440).

920187198 is an abundant number, since it is smaller than the sum of its proper divisors (1459199682).

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

920187198 is a wasteful number, since it uses less digits than its factorization.

920187198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 920187198 is about 30334.5874868936. The cubic root of 920187198 is about 972.6547879347.

The spelling of 920187198 in words is "nine hundred twenty million, one hundred eighty-seven thousand, one hundred ninety-eight".