1218960 has 60 divisors (see below), whose sum is σ = 4096092. Its totient is φ = 324864.

The previous prime is 1218953. The next prime is 1218989. The reversal of 1218960 is 698121.

It can be written as a sum of positive squares in 2 ways, for example, as 451584 + 767376 = 672^2 + 876^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127 + ... + 1566.

2^1218960 is an apocalyptic number.

1218960 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 1218960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048046).

1218960 is an abundant number, since it is smaller than the sum of its proper divisors (2877132).

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

1218960 is a wasteful number, since it uses less digits than its factorization.

1218960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712 (or 1703 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1218960 is about 1104.0652154651. The cubic root of 1218960 is about 106.8226017898.

The spelling of 1218960 in words is "one million, two hundred eighteen thousand, nine hundred sixty".