1127742740 has 12 divisors (see below), whose sum is σ = 2368259796. Its totient is φ = 451097088.

The previous prime is 1127742731. The next prime is 1127742743. The reversal of 1127742740 is 472477211.

It can be written as a sum of positive squares in 2 ways, for example, as 623201296 + 504541444 = 24964^2 + 22462^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1127742740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127742743) 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, 28193549 + ... + 28193588.

It is an arithmetic number, because the mean of its divisors is an integer number (197354983).

Almost surely, 2^1127742740 is an apocalyptic number.

1127742740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1127742740 is an abundant number, since it is smaller than the sum of its proper divisors (1240517056).

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

1127742740 is a wasteful number, since it uses less digits than its factorization.

1127742740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56387146 (or 56387144 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 1127742740 is about 33581.8811265837. The cubic root of 1127742740 is about 1040.8864298997.

The spelling of 1127742740 in words is "one billion, one hundred twenty-seven million, seven hundred forty-two thousand, seven hundred forty".