1264064 has 14 divisors (see below), whose sum is σ = 2508504. Its totient is φ = 632000.

The previous prime is 1264063. The next prime is 1264129. The reversal of 1264064 is 4604621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9812 + ... + 9939.

2^1264064 is an apocalyptic number.

It is an amenable number.

1264064 is a deficient number, since it is larger than the sum of its proper divisors (1244440).

1264064 is an equidigital number, since it uses as much as digits as its factorization.

1264064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19763 (or 19753 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1264064 is about 1124.3060081668. The cubic root of 1264064 is about 108.1242283349.

Adding to 1264064 its reverse (4604621), we get a palindrome (5868685).

The spelling of 1264064 in words is "one million, two hundred sixty-four thousand, sixty-four".