198295776 has 144 divisors (see below), whose sum is σ = 668513664. Its totient is φ = 56640384.

The previous prime is 198295759. The next prime is 198295787. The reversal of 198295776 is 677592891.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52611 + ... + 56253.

It is an arithmetic number, because the mean of its divisors is an integer number (4642456).

Almost surely, 2^198295776 is an apocalyptic number.

198295776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198295776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334256832).

198295776 is an abundant number, since it is smaller than the sum of its proper divisors (470217888).

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

198295776 is an equidigital number, since it uses as much as digits as its factorization.

198295776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675 (or 3655 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 198295776 is about 14081.7532999268. The cubic root of 198295776 is about 583.1377467463.

The spelling of 198295776 in words is "one hundred ninety-eight million, two hundred ninety-five thousand, seven hundred seventy-six".