1236080 has 20 divisors (see below), whose sum is σ = 2874072. Its totient is φ = 494400.

The previous prime is 1236077. The next prime is 1236161. The reversal of 1236080 is 806321.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7646 + ... + 7805.

2^1236080 is an apocalyptic number.

1236080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1236080 is an abundant number, since it is smaller than the sum of its proper divisors (1637992).

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

1236080 is a wasteful number, since it uses less digits than its factorization.

1236080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15464 (or 15458 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1236080 is about 1111.7913473310. The cubic root of 1236080 is about 107.3203778798.

The spelling of 1236080 in words is "one million, two hundred thirty-six thousand, eighty".