1264648 has 32 divisors (see below), whose sum is σ = 2957760. Its totient is φ = 492480.

The previous prime is 1264643. The next prime is 1264649. The reversal of 1264648 is 8464621.

It is not an unprimeable number, because it can be changed into a prime (1264643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (92430).

2^1264648 is an apocalyptic number.

It is an amenable number.

1264648 is an abundant number, since it is smaller than the sum of its proper divisors (1693112).

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

1264648 is a wasteful number, since it uses less digits than its factorization.

1264648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077 (or 2073 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 1264648 is about 1124.5656939459. The cubic root of 1264648 is about 108.1408769718.

It can be divided in two parts, 126 and 4648, that added together give a palindrome (4774).

The spelling of 1264648 in words is "one million, two hundred sixty-four thousand, six hundred forty-eight".