1173680 has 40 divisors (see below), whose sum is σ = 2892672. Its totient is φ = 441344.

The previous prime is 1173631. The next prime is 1173709. The reversal of 1173680 is 863711.

1173680 = T₃₇₅ + T₃₇₆ + ... + T₃₉₀.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929 + ... + 1791.

2^1173680 is an apocalyptic number.

1173680 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 1173680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446336).

1173680 is an abundant number, since it is smaller than the sum of its proper divisors (1718992).

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

1173680 is a wasteful number, since it uses less digits than its factorization.

1173680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1173680 is about 1083.3651277386. The cubic root of 1173680 is about 105.4831850293.

The spelling of 1173680 in words is "one million, one hundred seventy-three thousand, six hundred eighty".