1127797392 has 20 divisors (see below), whose sum is σ = 2913476720. Its totient is φ = 375932448.

The previous prime is 1127797381. The next prime is 1127797393. The reversal of 1127797392 is 2937977211.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 23495779 = 1127797392 / (1 + 1 + 2 + 7 + 7 + 9 + 7 + 3 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (1127797393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11747842 + ... + 11747937.

It is an arithmetic number, because the mean of its divisors is an integer number (145673836).

Almost surely, 2^1127797392 is an apocalyptic number.

1127797392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1127797392 is an abundant number, since it is smaller than the sum of its proper divisors (1785679328).

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

1127797392 is a wasteful number, since it uses less digits than its factorization.

1127797392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23495790 (or 23495784 counting only the distinct ones).

The product of its digits is 333396, while the sum is 48.

The square root of 1127797392 is about 33582.6948293314. The cubic root of 1127797392 is about 1040.9032439018.

The spelling of 1127797392 in words is "one billion, one hundred twenty-seven million, seven hundred ninety-seven thousand, three hundred ninety-two".