1156080 has 40 divisors (see below), whose sum is σ = 3584592. Its totient is φ = 308224.

The previous prime is 1156079. The next prime is 1156087. The reversal of 1156080 is 806511.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169 + ... + 2648.

2^1156080 is an apocalyptic number.

1156080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156080 is an abundant number, since it is smaller than the sum of its proper divisors (2428512).

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

1156080 is a wasteful number, since it uses less digits than its factorization.

1156080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833 (or 4827 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1156080 is about 1075.2116070802. The cubic root of 1156080 is about 104.9532671854.

The spelling of 1156080 in words is "one million, one hundred fifty-six thousand, eighty".