1264843432 has 8 divisors (see below), whose sum is σ = 2371581450. Its totient is φ = 632421712.

The previous prime is 1264843429. The next prime is 1264843441. The reversal of 1264843432 is 2343484621.

It can be written as a sum of positive squares in only one way, i.e., 1134746596 + 130096836 = 33686^2 + 11406^2 .

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

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1264843391 and 1264843400.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 79052707 + ... + 79052722.

Almost surely, 2^1264843432 is an apocalyptic number.

It is an amenable number.

1264843432 is a deficient number, since it is larger than the sum of its proper divisors (1106738018).

1264843432 is a wasteful number, since it uses less digits than its factorization.

1264843432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158105435 (or 158105431 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

The square root of 1264843432 is about 35564.6373804092. The cubic root of 1264843432 is about 1081.4644719086.

The spelling of 1264843432 in words is "one billion, two hundred sixty-four million, eight hundred forty-three thousand, four hundred thirty-two".