1264794892 has 6 divisors (see below), whose sum is σ = 2213391068. Its totient is φ = 632397444.

The previous prime is 1264794889. The next prime is 1264794899. The reversal of 1264794892 is 2984974621.

It is a super-2 number, since 2×1264794892² = 3199412237658583328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1264794899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158099358 + ... + 158099365.

Almost surely, 2^1264794892 is an apocalyptic number.

It is an amenable number.

1264794892 is a deficient number, since it is larger than the sum of its proper divisors (948596176).

1264794892 is a wasteful number, since it uses less digits than its factorization.

1264794892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316198727 (or 316198725 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 1264794892 is about 35563.9549544198. The cubic root of 1264794892 is about 1081.4506375331.

The spelling of 1264794892 in words is "one billion, two hundred sixty-four million, seven hundred ninety-four thousand, eight hundred ninety-two".