1171940 has 48 divisors (see below), whose sum is σ = 3072384. Its totient is φ = 364800.

The previous prime is 1171931. The next prime is 1171957. The reversal of 1171940 is 491711.

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, 1160 + ... + 1920.

It is an arithmetic number, because the mean of its divisors is an integer number (64008).

2^1171940 is an apocalyptic number.

1171940 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 1171940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536192).

1171940 is an abundant number, since it is smaller than the sum of its proper divisors (1900444).

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

1171940 is a wasteful number, since it uses less digits than its factorization.

1171940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1171940 is about 1082.5617765282. The cubic root of 1171940 is about 105.4310323933.

The spelling of 1171940 in words is "one million, one hundred seventy-one thousand, nine hundred forty".