1260229864 has 8 divisors (see below), whose sum is σ = 2362931010. Its totient is φ = 630114928.

The previous prime is 1260229849. The next prime is 1260229889. The reversal of 1260229864 is 4689220621.

It can be written as a sum of positive squares in only one way, i.e., 833476900 + 426752964 = 28870^2 + 20658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×1260229864³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78764359 + ... + 78764374.

Almost surely, 2^1260229864 is an apocalyptic number.

It is an amenable number.

1260229864 is a deficient number, since it is larger than the sum of its proper divisors (1102701146).

1260229864 is a wasteful number, since it uses less digits than its factorization.

1260229864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157528739 (or 157528735 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1260229864 is about 35499.7163932333. The cubic root of 1260229864 is about 1080.1479746948.

The spelling of 1260229864 in words is "one billion, two hundred sixty million, two hundred twenty-nine thousand, eight hundred sixty-four".