1296120 has 64 divisors (see below), whose sum is σ = 4446720. Its totient is φ = 296064.

The previous prime is 1296109. The next prime is 1296137. The reversal of 1296120 is 216921.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69 + ... + 1611.

It is an arithmetic number, because the mean of its divisors is an integer number (69480).

2^1296120 is an apocalyptic number.

1296120 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 1296120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2223360).

1296120 is an abundant number, since it is smaller than the sum of its proper divisors (3150600).

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

1296120 is a wasteful number, since it uses less digits than its factorization.

1296120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1560 counting only the distinct ones).

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

The square root of 1296120 is about 1138.4726610683. The cubic root of 1296120 is about 109.0306005042.

The spelling of 1296120 in words is "one million, two hundred ninety-six thousand, one hundred twenty".