1298980 has 24 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 513888.

The previous prime is 1298963. The next prime is 1298981. The reversal of 1298980 is 898921.

It is not an unprimeable number, because it can be changed into a prime (1298981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837 + ... + 2443.

It is an arithmetic number, because the mean of its divisors is an integer number (114912).

2^1298980 is an apocalyptic number.

1298980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298980 is an abundant number, since it is smaller than the sum of its proper divisors (1458908).

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

1298980 is a wasteful number, since it uses less digits than its factorization.

1298980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 1298980 is about 1139.7280377353. The cubic root of 1298980 is about 109.1107367159.

It can be divided in two parts, 1298 and 980, that added together give a triangular number (2278 = T₆₇).

The spelling of 1298980 in words is "one million, two hundred ninety-eight thousand, nine hundred eighty".