538170240 has 64 divisors (see below), whose sum is σ = 1715423760. Its totient is φ = 143511552.

The previous prime is 538170221. The next prime is 538170289. The reversal of 538170240 is 42071835.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 538170198 and 538170207.

It is a congruent 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, 138229 + ... + 142068.

Almost surely, 2^538170240 is an apocalyptic number.

It is an amenable number.

538170240 is an abundant number, since it is smaller than the sum of its proper divisors (1177253520).

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

538170240 is a wasteful number, since it uses less digits than its factorization.

538170240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280319 (or 280307 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 538170240 is about 23198.4965030064. The cubic root of 538170240 is about 813.4044788312.

The spelling of 538170240 in words is "five hundred thirty-eight million, one hundred seventy thousand, two hundred forty".