5406720 has 128 divisors (see below), whose sum is σ = 18874080. Its totient is φ = 1310720.

The previous prime is 5406719. The next prime is 5406733. The reversal of 5406720 is 276045.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×5406720³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491515 + ... + 491525.

Almost surely, 2^5406720 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 5406720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9437040).

5406720 is an abundant number, since it is smaller than the sum of its proper divisors (13467360).

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

5406720 is an equidigital number, since it uses as much as digits as its factorization.

5406720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 5406720 is about 2325.2354719469. The cubic root of 5406720 is about 175.5138096778.

It can be divided in two parts, 540 and 6720, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 5406720 in words is "five million, four hundred six thousand, seven hundred twenty".