5402320 has 80 divisors (see below), whose sum is σ = 15677568. Its totient is φ = 1681920.

The previous prime is 5402317. The next prime is 5402347. The reversal of 5402320 is 232045.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5402320² = 58370122764800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 5402294 and 5402303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5722 + ... + 6598.

Almost surely, 2^5402320 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 5402320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7838784).

5402320 is an abundant number, since it is smaller than the sum of its proper divisors (10275248).

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

5402320 is a wasteful number, since it uses less digits than its factorization.

5402320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 5402320 is about 2324.2891386400. The cubic root of 5402320 is about 175.4661855887.

Adding to 5402320 its reverse (232045), we get a palindrome (5634365).

The spelling of 5402320 in words is "five million, four hundred two thousand, three hundred twenty".