1328570 has 8 divisors (see below), whose sum is σ = 2391444. Its totient is φ = 531424.

The previous prime is 1328563. The next prime is 1328573. The reversal of 1328570 is 758231.

It can be written as a sum of positive squares in 2 ways, for example, as 1234321 + 94249 = 1111^2 + 307^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1328573) 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, 66419 + ... + 66438.

2^1328570 is an apocalyptic number.

1328570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328570 is a deficient number, since it is larger than the sum of its proper divisors (1062874).

1328570 is a wasteful number, since it uses less digits than its factorization.

1328570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132864.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1328570 is about 1152.6361090995. The cubic root of 1328570 is about 109.9330170712.

The spelling of 1328570 in words is "one million, three hundred twenty-eight thousand, five hundred seventy".