5406840 has 96 divisors (see below), whose sum is σ = 18364320. Its totient is φ = 1377024.

The previous prime is 5406827. The next prime is 5406851. The reversal of 5406840 is 486045.

It is a congruent number.

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, 7954 + ... + 8606.

It is an arithmetic number, because the mean of its divisors is an integer number (191295).

Almost surely, 2^5406840 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 5406840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9182160).

5406840 is an abundant number, since it is smaller than the sum of its proper divisors (12957480).

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

5406840 is a wasteful number, since it uses less digits than its factorization.

5406840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 5406840 is about 2325.2612756419. The cubic root of 5406840 is about 175.5151081546.

The spelling of 5406840 in words is "five million, four hundred six thousand, eight hundred forty".