1127644404 has 12 divisors (see below), whose sum is σ = 2631170304. Its totient is φ = 375881464.

The previous prime is 1127644387. The next prime is 1127644409. The reversal of 1127644404 is 4044467211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127644409) 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, 46985172 + ... + 46985195.

It is an arithmetic number, because the mean of its divisors is an integer number (219264192).

Almost surely, 2^1127644404 is an apocalyptic number.

It is an amenable number.

1127644404 is an abundant number, since it is smaller than the sum of its proper divisors (1503525900).

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

1127644404 is a wasteful number, since it uses less digits than its factorization.

1127644404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93970374 (or 93970372 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 1127644404 is about 33580.4169718007. The cubic root of 1127644404 is about 1040.8561748958.

The spelling of 1127644404 in words is "one billion, one hundred twenty-seven million, six hundred forty-four thousand, four hundred four".