1216960 has 28 divisors (see below), whose sum is σ = 2898648. Its totient is φ = 486656.

The previous prime is 1216951. The next prime is 1216961. The reversal of 1216960 is 696121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216961) 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 3 ways as a sum of consecutive naturals, for example, 1582 + ... + 2221.

2^1216960 is an apocalyptic number.

1216960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1216960 is an abundant number, since it is smaller than the sum of its proper divisors (1681688).

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

1216960 is an equidigital number, since it uses as much as digits as its factorization.

1216960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820 (or 3810 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1216960 is about 1103.1591000395. The cubic root of 1216960 is about 106.7641469988.

The spelling of 1216960 in words is "one million, two hundred sixteen thousand, nine hundred sixty".