539020440 has 512 divisors, whose sum is σ = 2206310400. Its totient is φ = 114462720.

The previous prime is 539020421. The next prime is 539020451. The reversal of 539020440 is 44020935.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11468497 + ... + 11468543.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 2^539020440 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 539020440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1103155200).

539020440 is an abundant number, since it is smaller than the sum of its proper divisors (1667289960).

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

539020440 is a wasteful number, since it uses less digits than its factorization.

539020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 539020440 is about 23216.8137348776. The cubic root of 539020440 is about 813.8325915873.

The spelling of 539020440 in words is "five hundred thirty-nine million, twenty thousand, four hundred forty".