3198280 has 32 divisors (see below), whose sum is σ = 7394040. Its totient is φ = 1244160.

The previous prime is 3198277. The next prime is 3198281. The reversal of 3198280 is 828913.

It can be written as a sum of positive squares in 4 ways, for example, as 3104644 + 93636 = 1762^2 + 306^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3198281) by changing a digit.

It is a nontrivial repunit in base 147.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400 + ... + 2560.

Almost surely, 2^3198280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3198280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3697020).

3198280 is an abundant number, since it is smaller than the sum of its proper divisors (4195760).

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

3198280 is a wasteful number, since it uses less digits than its factorization.

3198280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 3198280 is about 1788.3735627659. The cubic root of 3198280 is about 147.3348529881.

The spelling of 3198280 in words is "three million, one hundred ninety-eight thousand, two hundred eighty".