1125440 has 28 divisors (see below), whose sum is σ = 2680716. Its totient is φ = 450048.

The previous prime is 1125433. The next prime is 1125469. The reversal of 1125440 is 445211.

It can be written as a sum of positive squares in 2 ways, for example, as 802816 + 322624 = 896^2 + 568^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439 + ... + 2078.

2^1125440 is an apocalyptic number.

1125440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125440 is an abundant number, since it is smaller than the sum of its proper divisors (1555276).

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

1125440 is an equidigital number, since it uses as much as digits as its factorization.

1125440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534 (or 3524 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1125440 is about 1060.8675694921. The cubic root of 1125440 is about 104.0177484502.

The spelling of 1125440 in words is "one million, one hundred twenty-five thousand, four hundred forty".