1218760 has 16 divisors (see below), whose sum is σ = 2742300. Its totient is φ = 487488.

The previous prime is 1218739. The next prime is 1218761. The reversal of 1218760 is 678121.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 4356 = 1102^2 + 66^2 .

It is a super-3 number, since 3×1218760³ = 5430950333128128000, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1218761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15195 + ... + 15274.

2^1218760 is an apocalyptic number.

1218760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1218760 is an abundant number, since it is smaller than the sum of its proper divisors (1523540).

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

1218760 is a wasteful number, since it uses less digits than its factorization.

1218760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30480 (or 30476 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1218760 is about 1103.9746373898. The cubic root of 1218760 is about 106.8167591893.

The spelling of 1218760 in words is "one million, two hundred eighteen thousand, seven hundred sixty".