1127722720 has 48 divisors (see below), whose sum is σ = 2688729120. Its totient is φ = 446943744.

The previous prime is 1127722691. The next prime is 1127722723. The reversal of 1127722720 is 272277211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127722723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14892 + ... + 49771.

It is an arithmetic number, because the mean of its divisors is an integer number (56015190).

Almost surely, 2^1127722720 is an apocalyptic number.

1127722720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1127722720 is an abundant number, since it is smaller than the sum of its proper divisors (1561006400).

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

1127722720 is a wasteful number, since it uses less digits than its factorization.

1127722720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64787 (or 64779 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 1127722720 is about 33581.5830478553. The cubic root of 1127722720 is about 1040.8802704957.

Adding to 1127722720 its reverse (272277211), we get a palindrome (1399999931).

The spelling of 1127722720 in words is "one billion, one hundred twenty-seven million, seven hundred twenty-two thousand, seven hundred twenty".