539039628 has 72 divisors (see below), whose sum is σ = 1404539136. Its totient is φ = 174201600.

The previous prime is 539039609. The next prime is 539039647. The reversal of 539039628 is 826930935.

539039628 is a `hidden beast` number, since 539 + 0 + 3 + 96 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (539039609) and next prime (539039647).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254293 + ... + 256403.

It is an arithmetic number, because the mean of its divisors is an integer number (19507488).

Almost surely, 2^539039628 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 539039628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702269568).

539039628 is an abundant number, since it is smaller than the sum of its proper divisors (865499508).

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

539039628 is a wasteful number, since it uses less digits than its factorization.

539039628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 539039628 is about 23217.2269661990. The cubic root of 539039628 is about 813.8422483853.

The spelling of 539039628 in words is "five hundred thirty-nine million, thirty-nine thousand, six hundred twenty-eight".