1151940 has 48 divisors (see below), whose sum is σ = 3282048. Its totient is φ = 301824.

The previous prime is 1151933. The next prime is 1151963. The reversal of 1151940 is 491511.

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, 4249 + ... + 4511.

It is an arithmetic number, because the mean of its divisors is an integer number (68376).

2^1151940 is an apocalyptic number.

1151940 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 1151940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641024).

1151940 is an abundant number, since it is smaller than the sum of its proper divisors (2130108).

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

1151940 is a wasteful number, since it uses less digits than its factorization.

1151940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1151940 is about 1073.2846779862. The cubic root of 1151940 is about 104.8278357775.

The spelling of 1151940 in words is "one million, one hundred fifty-one thousand, nine hundred forty".