1127571440 has 20 divisors (see below), whose sum is σ = 2621603784. Its totient is φ = 451028544.

The previous prime is 1127571439. The next prime is 1127571443. The reversal of 1127571440 is 441757211.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1127571397 and 1127571406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127571443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7047242 + ... + 7047401.

Almost surely, 2^1127571440 is an apocalyptic number.

1127571440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1127571440 is an abundant number, since it is smaller than the sum of its proper divisors (1494032344).

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

1127571440 is a wasteful number, since it uses less digits than its factorization.

1127571440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14094656 (or 14094650 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 1127571440 is about 33579.3305472280. The cubic root of 1127571440 is about 1040.8337249497.

The spelling of 1127571440 in words is "one billion, one hundred twenty-seven million, five hundred seventy-one thousand, four hundred forty".