5639340 has 96 divisors (see below), whose sum is σ = 18708480. Its totient is φ = 1241856.

The previous prime is 5639327. The next prime is 5639357. The reversal of 5639340 is 439365.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5639298 and 5639307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11949 + ... + 12411.

It is an arithmetic number, because the mean of its divisors is an integer number (194880).

Almost surely, 2^5639340 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 5639340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9354240).

5639340 is an abundant number, since it is smaller than the sum of its proper divisors (13069140).

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

5639340 is a wasteful number, since it uses less digits than its factorization.

5639340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 5639340 is about 2374.7294582752. The cubic root of 5639340 is about 177.9956654249.

The spelling of 5639340 in words is "five million, six hundred thirty-nine thousand, three hundred forty".