1155640364 has 12 divisors (see below), whose sum is σ = 2055524688. Its totient is φ = 568347600.

The previous prime is 1155640349. The next prime is 1155640393. The reversal of 1155640364 is 4630465511.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2367872 + ... + 2368359.

It is an arithmetic number, because the mean of its divisors is an integer number (171293724).

Almost surely, 2^1155640364 is an apocalyptic number.

It is an amenable number.

1155640364 is a deficient number, since it is larger than the sum of its proper divisors (899884324).

1155640364 is a wasteful number, since it uses less digits than its factorization.

1155640364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736296 (or 4736294 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 1155640364 is about 33994.7108238914. The cubic root of 1155640364 is about 1049.3996156502.

The spelling of 1155640364 in words is "one billion, one hundred fifty-five million, six hundred forty thousand, three hundred sixty-four".