198579150 has 216 divisors, whose sum is σ = 671488272. Its totient is φ = 41184000.

The previous prime is 198579133. The next prime is 198579169. The reversal of 198579150 is 51975891.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 198579096 and 198579105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 380890 + ... + 381410.

It is an arithmetic number, because the mean of its divisors is an integer number (3108742).

Almost surely, 2^198579150 is an apocalyptic number.

198579150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 198579150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335744136).

198579150 is an abundant number, since it is smaller than the sum of its proper divisors (472909122).

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

198579150 is a wasteful number, since it uses less digits than its factorization.

198579150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 198579150 is about 14091.8114520455. The cubic root of 198579150 is about 583.4153916308.

The spelling of 198579150 in words is "one hundred ninety-eight million, five hundred seventy-nine thousand, one hundred fifty".