5393440 has 48 divisors (see below), whose sum is σ = 13727448. Its totient is φ = 1990656.

The previous prime is 5393419. The next prime is 5393441. The reversal of 5393440 is 443935.

It can be written as a sum of positive squares in 4 ways, for example, as 3640464 + 1752976 = 1908^2 + 1324^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5393399 and 5393408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5393441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784 + ... + 3376.

Almost surely, 2^5393440 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 5393440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6863724).

5393440 is an abundant number, since it is smaller than the sum of its proper divisors (8334008).

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

5393440 is a wasteful number, since it uses less digits than its factorization.

5393440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621 (or 2613 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 5393440 is about 2322.3780915260. The cubic root of 5393440 is about 175.3699927040.

The spelling of 5393440 in words is "five million, three hundred ninety-three thousand, four hundred forty".