1264204347 has 16 divisors (see below), whose sum is σ = 1934826240. Its totient is φ = 719245152.

The previous prime is 1264204339. The next prime is 1264204351. The reversal of 1264204347 is 7434024621.

It is not a de Polignac number, because 1264204347 - 2³ = 1264204339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264204547) 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 15 ways as a sum of consecutive naturals, for example, 126633 + ... + 136250.

It is an arithmetic number, because the mean of its divisors is an integer number (120926640).

Almost surely, 2^1264204347 is an apocalyptic number.

1264204347 is a deficient number, since it is larger than the sum of its proper divisors (670621893).

1264204347 is a wasteful number, since it uses less digits than its factorization.

1264204347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263122.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 1264204347 is about 35555.6514073361. The cubic root of 1264204347 is about 1081.2822980674.

Adding to 1264204347 its reverse (7434024621), we get a palindrome (8698228968).

The spelling of 1264204347 in words is "one billion, two hundred sixty-four million, two hundred four thousand, three hundred forty-seven".