1264224705 has 8 divisors (see below), whose sum is σ = 2022759552. Its totient is φ = 674253168.

The previous prime is 1264224653. The next prime is 1264224707. The reversal of 1264224705 is 5074224621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1264224705 - 2⁸ = 1264224449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264224707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42140809 + ... + 42140838.

It is an arithmetic number, because the mean of its divisors is an integer number (252844944).

Almost surely, 2^1264224705 is an apocalyptic number.

1264224705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264224705 is a deficient number, since it is larger than the sum of its proper divisors (758534847).

1264224705 is an equidigital number, since it uses as much as digits as its factorization.

1264224705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84281655.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 1264224705 is about 35555.9376897868. The cubic root of 1264224705 is about 1081.2881021467.

The spelling of 1264224705 in words is "one billion, two hundred sixty-four million, two hundred twenty-four thousand, seven hundred five".