1212960 has 144 divisors (see below), whose sum is σ = 4608576. Its totient is φ = 262656.

The previous prime is 1212943. The next prime is 1212973. The reversal of 1212960 is 692121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63831 + ... + 63849.

It is an arithmetic number, because the mean of its divisors is an integer number (32004).

2^1212960 is an apocalyptic number.

1212960 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 1212960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304288).

1212960 is an abundant number, since it is smaller than the sum of its proper divisors (3395616).

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

1212960 is a wasteful number, since it uses less digits than its factorization.

1212960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1212960 is about 1101.3446327104. The cubic root of 1212960 is about 106.6470450019.

It can be divided in two parts, 121 and 2960, that added together give a triangular number (3081 = T₇₈).

The spelling of 1212960 in words is "one million, two hundred twelve thousand, nine hundred sixty".