1328764 has 6 divisors (see below), whose sum is σ = 2325344. Its totient is φ = 664380.

The previous prime is 1328749. The next prime is 1328777. The reversal of 1328764 is 4678231.

It is a super-2 number, since 2×1328764² = 3531227535392, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166092 + ... + 166099.

2^1328764 is an apocalyptic number.

It is an amenable number.

1328764 is a deficient number, since it is larger than the sum of its proper divisors (996580).

1328764 is a wasteful number, since it uses less digits than its factorization.

1328764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332195 (or 332193 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1328764 is about 1152.7202609480. The cubic root of 1328764 is about 109.9383676781.

The spelling of 1328764 in words is "one million, three hundred twenty-eight thousand, seven hundred sixty-four".