1047771268 has 24 divisors (see below), whose sum is σ = 1943995032. Its totient is φ = 492424704.

The previous prime is 1047771191. The next prime is 1047771269. The reversal of 1047771268 is 8621777401.

It can be written as a sum of positive squares in 4 ways, for example, as 542330944 + 505440324 = 23288^2 + 22482^2 .

It is not an unprimeable number, because it can be changed into a prime (1047771269) 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, 44530 + ... + 63862.

It is an arithmetic number, because the mean of its divisors is an integer number (80999793).

Almost surely, 2^1047771268 is an apocalyptic number.

It is an amenable number.

1047771268 is a deficient number, since it is larger than the sum of its proper divisors (896223764).

1047771268 is a wasteful number, since it uses less digits than its factorization.

1047771268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20151 (or 20149 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 1047771268 is about 32369.2951421559. The cubic root of 1047771268 is about 1015.6767124539.

The spelling of 1047771268 in words is "one billion, forty-seven million, seven hundred seventy-one thousand, two hundred sixty-eight".