1121960 has 32 divisors (see below), whose sum is σ = 2885760. Its totient is φ = 384576.

The previous prime is 1121947. The next prime is 1121987. The reversal of 1121960 is 691211.

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

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, 1724 + ... + 2283.

It is an arithmetic number, because the mean of its divisors is an integer number (90180).

2^1121960 is an apocalyptic number.

1121960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121960 is an abundant number, since it is smaller than the sum of its proper divisors (1763800).

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

1121960 is a wasteful number, since it uses less digits than its factorization.

1121960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025 (or 4021 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1121960 is about 1059.2261326081. The cubic root of 1121960 is about 103.9104258314.

The spelling of 1121960 in words is "one million, one hundred twenty-one thousand, nine hundred sixty".