1328561674 has 16 divisors (see below), whose sum is σ = 2175820416. Its totient is φ = 603388800.

The previous prime is 1328561623. The next prime is 1328561677. The reversal of 1328561674 is 4761658231.

It is a super-2 number, since 2×1328561674² = 3530152243243364552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1328561674.

It is not an unprimeable number, because it can be changed into a prime (1328561677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2554 + ... + 51610.

It is an arithmetic number, because the mean of its divisors is an integer number (135988776).

Almost surely, 2^1328561674 is an apocalyptic number.

1328561674 is a deficient number, since it is larger than the sum of its proper divisors (847258742).

1328561674 is a wasteful number, since it uses less digits than its factorization.

1328561674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50301.

The product of its digits is 241920, while the sum is 43.

The square root of 1328561674 is about 36449.4399682629. The cubic root of 1328561674 is about 1099.3278742476.

The spelling of 1328561674 in words is "one billion, three hundred twenty-eight million, five hundred sixty-one thousand, six hundred seventy-four".