198792810 has 24 divisors (see below), whose sum is σ = 516861540. Its totient is φ = 53011392.

The previous prime is 198792799. The next prime is 198792817. The reversal of 198792810 is 18297891.

It can be written as a sum of positive squares in 2 ways, for example, as 192182769 + 6610041 = 13863^2 + 2571^2 .

It is a super-2 number, since 2×198792810² = 79037162615392200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (198792817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1104315 + ... + 1104494.

Almost surely, 2^198792810 is an apocalyptic number.

198792810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198792810 is an abundant number, since it is smaller than the sum of its proper divisors (318068730).

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

198792810 is a wasteful number, since it uses less digits than its factorization.

198792810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208822 (or 2208819 counting only the distinct ones).

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

The square root of 198792810 is about 14099.3904123547. The cubic root of 198792810 is about 583.6245573512.

The spelling of 198792810 in words is "one hundred ninety-eight million, seven hundred ninety-two thousand, eight hundred ten".