538555276 has 72 divisors (see below), whose sum is σ = 1139863200. Its totient is φ = 222391008.

The previous prime is 538555273. The next prime is 538555307. The reversal of 538555276 is 672555835.

It is a happy number.

It is a super-3 number, since 3×538555276³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (538555271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5228641 + ... + 5228743.

Almost surely, 2^538555276 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 538555276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569931600).

538555276 is an abundant number, since it is smaller than the sum of its proper divisors (601307924).

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

538555276 is a wasteful number, since it uses less digits than its factorization.

538555276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 149 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 46.

The square root of 538555276 is about 23206.7937466596. The cubic root of 538555276 is about 813.5984170577.

The spelling of 538555276 in words is "five hundred thirty-eight million, five hundred fifty-five thousand, two hundred seventy-six".