538133244 has 48 divisors (see below), whose sum is σ = 1371216000. Its totient is φ = 162901440.

The previous prime is 538133243. The next prime is 538133263. The reversal of 538133244 is 442331835.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538133243) 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, 194382 + ... + 197130.

It is an arithmetic number, because the mean of its divisors is an integer number (28567000).

Almost surely, 2^538133244 is an apocalyptic number.

It is an amenable number.

538133244 is an abundant number, since it is smaller than the sum of its proper divisors (833082756).

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

538133244 is a wasteful number, since it uses less digits than its factorization.

538133244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250 (or 4248 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 538133244 is about 23197.6991100411. The cubic root of 538133244 is about 813.3858394990.

The spelling of 538133244 in words is "five hundred thirty-eight million, one hundred thirty-three thousand, two hundred forty-four".