1264909432 has 8 divisors (see below), whose sum is σ = 2371705200. Its totient is φ = 632454712.

The previous prime is 1264909423. The next prime is 1264909433. The reversal of 1264909432 is 2349094621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264909433) 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 as a sum of consecutive naturals, namely, 79056832 + ... + 79056847.

It is an arithmetic number, because the mean of its divisors is an integer number (296463150).

Almost surely, 2^1264909432 is an apocalyptic number.

It is an amenable number.

1264909432 is a deficient number, since it is larger than the sum of its proper divisors (1106795768).

1264909432 is a wasteful number, since it uses less digits than its factorization.

1264909432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158113685 (or 158113681 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1264909432 is about 35565.5652562981. The cubic root of 1264909432 is about 1081.4832819873.

The spelling of 1264909432 in words is "one billion, two hundred sixty-four million, nine hundred nine thousand, four hundred thirty-two".