539644404 has 96 divisors (see below), whose sum is σ = 1410949120. Its totient is φ = 159408000.

The previous prime is 539644393. The next prime is 539644409. The reversal of 539644404 is 404446935.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539644409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 729867 + ... + 730605.

Almost surely, 2^539644404 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 539644404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705474560).

539644404 is an abundant number, since it is smaller than the sum of its proper divisors (871304716).

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

539644404 is a wasteful number, since it uses less digits than its factorization.

539644404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 539644404 is about 23230.2476095284. The cubic root of 539644404 is about 814.1464983123.

The spelling of 539644404 in words is "five hundred thirty-nine million, six hundred forty-four thousand, four hundred four".