538634345 has 8 divisors (see below), whose sum is σ = 663830664. Its totient is φ = 419261184.

The previous prime is 538634333. The next prime is 538634351. The reversal of 538634345 is 543436835.

It can be written as a sum of positive squares in 4 ways, for example, as 325153024 + 213481321 = 18032^2 + 14611^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 538634345 - 2¹² = 538630249 is a prime.

It is a super-2 number, since 2×538634345² = 580253915227158050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455584 + ... + 1455953.

It is an arithmetic number, because the mean of its divisors is an integer number (82978833).

Almost surely, 2^538634345 is an apocalyptic number.

It is an amenable number.

538634345 is a deficient number, since it is larger than the sum of its proper divisors (125196319).

538634345 is a wasteful number, since it uses less digits than its factorization.

538634345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911579.

The product of its digits is 518400, while the sum is 41.

The square root of 538634345 is about 23208.4972585474. The cubic root of 538634345 is about 813.6382317669.

The spelling of 538634345 in words is "five hundred thirty-eight million, six hundred thirty-four thousand, three hundred forty-five".