1197280 has 48 divisors (see below), whose sum is σ = 3235680. Its totient is φ = 410112.

The previous prime is 1197277. The next prime is 1197281. The reversal of 1197280 is 827911.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586 + ... + 1654.

It is an arithmetic number, because the mean of its divisors is an integer number (67410).

2^1197280 is an apocalyptic number.

1197280 is a gapful number since it is divisible by the number (10) 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 1197280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1617840).

1197280 is an abundant number, since it is smaller than the sum of its proper divisors (2038400).

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

1197280 is a wasteful number, since it uses less digits than its factorization.

1197280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1197280 is about 1094.2029062290. The cubic root of 1197280 is about 106.1855064198.

The spelling of 1197280 in words is "one million, one hundred ninety-seven thousand, two hundred eighty".