538534272 has 128 divisors (see below), whose sum is σ = 1491125760. Its totient is φ = 172070912.

The previous prime is 538534267. The next prime is 538534277. The reversal of 538534272 is 272435835.

It is an interprime number because it is at equal distance from previous prime (538534267) and next prime (538534277).

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-4 number, since 4×538534272⁴ (a number of 36 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 538534272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538534277) 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, 956263 + ... + 956825.

It is an arithmetic number, because the mean of its divisors is an integer number (11649420).

Almost surely, 2^538534272 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 538534272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745562880).

538534272 is an abundant number, since it is smaller than the sum of its proper divisors (952591488).

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

538534272 is a wasteful number, since it uses less digits than its factorization.

538534272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 668 counting only the distinct ones).

The product of its digits is 201600, while the sum is 39.

The square root of 538534272 is about 23206.3412023524. The cubic root of 538534272 is about 813.5878399674.

The spelling of 538534272 in words is "five hundred thirty-eight million, five hundred thirty-four thousand, two hundred seventy-two".