1170920 has 32 divisors (see below), whose sum is σ = 2677320. Its totient is φ = 460800.

The previous prime is 1170899. The next prime is 1170941. The reversal of 1170920 is 290711.

It is an interprime number because it is at equal distance from previous prime (1170899) and next prime (1170941).

It can be written as a sum of positive squares in 4 ways, for example, as 1162084 + 8836 = 1078^2 + 94^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1170892 and 1170901.

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, 2720 + ... + 3120.

2^1170920 is an apocalyptic number.

1170920 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 1170920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1338660).

1170920 is an abundant number, since it is smaller than the sum of its proper divisors (1506400).

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

1170920 is a wasteful number, since it uses less digits than its factorization.

1170920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1170920 is about 1082.0905692224. The cubic root of 1170920 is about 105.4004361548.

The spelling of 1170920 in words is "one million, one hundred seventy thousand, nine hundred twenty".