538680408 has 64 divisors (see below), whose sum is σ = 1560798720. Its totient is φ = 151737600.

The previous prime is 538680383. The next prime is 538680409. The reversal of 538680408 is 804086835.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 538680408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538680409) 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, 10653 + ... + 34508.

It is an arithmetic number, because the mean of its divisors is an integer number (24387480).

Almost surely, 2^538680408 is an apocalyptic number.

It is an amenable number.

538680408 is an abundant number, since it is smaller than the sum of its proper divisors (1022118312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538680408 is a wasteful number, since it uses less digits than its factorization.

538680408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45248 (or 45244 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 538680408 is about 23209.4896109329. The cubic root of 538680408 is about 813.6614247115.

The spelling of 538680408 in words is "five hundred thirty-eight million, six hundred eighty thousand, four hundred eight".