1997260 has 24 divisors (see below), whose sum is σ = 4309200. Its totient is φ = 777024.

The previous prime is 1997257. The next prime is 1997267. The reversal of 1997260 is 627991.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1997267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610 + ... + 2089.

It is an arithmetic number, because the mean of its divisors is an integer number (179550).

2^1997260 is an apocalyptic number.

1997260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1997260 is an abundant number, since it is smaller than the sum of its proper divisors (2311940).

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

1997260 is a wasteful number, since it uses less digits than its factorization.

1997260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745 (or 2743 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 1997260 is about 1413.2444940632. The cubic root of 1997260 is about 125.9345422999.

It can be divided in two parts, 19 and 97260, that added together give a palindrome (97279).

The spelling of 1997260 in words is "one million, nine hundred ninety-seven thousand, two hundred sixty".