1264774632 has 64 divisors (see below), whose sum is σ = 3453278400. Its totient is φ = 382832640.

The previous prime is 1264774631. The next prime is 1264774703. The reversal of 1264774632 is 2364774621.

It is not an unprimeable number, because it can be changed into a prime (1264774631) 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, 292744 + ... + 297032.

It is an arithmetic number, because the mean of its divisors is an integer number (53957475).

Almost surely, 2^1264774632 is an apocalyptic number.

1264774632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1264774632 is an abundant number, since it is smaller than the sum of its proper divisors (2188503768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264774632 is a wasteful number, since it uses less digits than its factorization.

1264774632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426 (or 5422 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 1264774632 is about 35563.6701143175. The cubic root of 1264774632 is about 1081.4448631299. Note that the first 3 decimals are identical.

The spelling of 1264774632 in words is "one billion, two hundred sixty-four million, seven hundred seventy-four thousand, six hundred thirty-two".