538507140 has 96 divisors (see below), whose sum is σ = 1547220864. Its totient is φ = 139898880.

The previous prime is 538507129. The next prime is 538507141. The reversal of 538507140 is 41705835.

It is not an unprimeable number, because it can be changed into a prime (538507141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389250 + ... + 390630.

It is an arithmetic number, because the mean of its divisors is an integer number (16116884).

Almost surely, 2^538507140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538507140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773610432).

538507140 is an abundant number, since it is smaller than the sum of its proper divisors (1008713724).

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

538507140 is a wasteful number, since it uses less digits than its factorization.

538507140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 538507140 is about 23205.7566133923. The cubic root of 538507140 is about 813.5741765621.

The spelling of 538507140 in words is "five hundred thirty-eight million, five hundred seven thousand, one hundred forty".