538464645 has 16 divisors (see below), whose sum is σ = 957270720. Its totient is φ = 287181072.

The previous prime is 538464643. The next prime is 538464659. The reversal of 538464645 is 546464835.

It is not a de Polignac number, because 538464645 - 2¹ = 538464643 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 538464645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538464643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1994179 + ... + 1994448.

It is an arithmetic number, because the mean of its divisors is an integer number (59829420).

Almost surely, 2^538464645 is an apocalyptic number.

It is an amenable number.

538464645 is a deficient number, since it is larger than the sum of its proper divisors (418806075).

538464645 is a wasteful number, since it uses less digits than its factorization.

538464645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988641 (or 3988635 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The square root of 538464645 is about 23204.8409820020. The cubic root of 538464645 is about 813.5527755806.

The spelling of 538464645 in words is "five hundred thirty-eight million, four hundred sixty-four thousand, six hundred forty-five".