1303264 has 24 divisors (see below), whose sum is σ = 2593080. Its totient is φ = 644736.

The previous prime is 1303261. The next prime is 1303279. The reversal of 1303264 is 4623031.

1303264 = 110² + 111² + ... + 173².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4302 + ... + 4594.

It is an arithmetic number, because the mean of its divisors is an integer number (108045).

2^1303264 is an apocalyptic number.

It is an amenable number.

1303264 is a deficient number, since it is larger than the sum of its proper divisors (1289816).

1303264 is a wasteful number, since it uses less digits than its factorization.

1303264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1303264 is about 1141.6058864599. The cubic root of 1303264 is about 109.2305531560.

Adding to 1303264 its reverse (4623031), we get a palindrome (5926295).

The spelling of 1303264 in words is "one million, three hundred three thousand, two hundred sixty-four".