532686645 has 64 divisors (see below), whose sum is σ = 989913600. Its totient is φ = 271434240.

The previous prime is 532686643. The next prime is 532686667. The reversal of 532686645 is 546686235.

It is not a de Polignac number, because 532686645 - 2¹ = 532686643 is a prime.

It is a super-2 number, since 2×532686645² = 567510123522712050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 532686645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532686643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 402585 + ... + 403905.

It is an arithmetic number, because the mean of its divisors is an integer number (15467400).

Almost surely, 2^532686645 is an apocalyptic number.

It is an amenable number.

532686645 is a deficient number, since it is larger than the sum of its proper divisors (457226955).

532686645 is a wasteful number, since it uses less digits than its factorization.

532686645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467 (or 1461 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 532686645 is about 23080.0053076250. The cubic root of 532686645 is about 810.6323594180.

The spelling of 532686645 in words is "five hundred thirty-two million, six hundred eighty-six thousand, six hundred forty-five".