539469440 has 64 divisors (see below), whose sum is σ = 1331320320. Its totient is φ = 208819200.

The previous prime is 539469407. The next prime is 539469473. The reversal of 539469440 is 44964935.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (539469407) and next prime (539469473).

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 539469391 and 539469400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6245 + ... + 33435.

It is an arithmetic number, because the mean of its divisors is an integer number (20801880).

Almost surely, 2^539469440 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 539469440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665660160).

539469440 is an abundant number, since it is smaller than the sum of its proper divisors (791850880).

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

539469440 is a wasteful number, since it uses less digits than its factorization.

539469440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27241 (or 27229 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 539469440 is about 23226.4814382205. The cubic root of 539469440 is about 814.0585010285.

The spelling of 539469440 in words is "five hundred thirty-nine million, four hundred sixty-nine thousand, four hundred forty".