2406720 has 112 divisors (see below), whose sum is σ = 8046720. Its totient is φ = 608256.

The previous prime is 2406709. The next prime is 2406721. The reversal of 2406720 is 276042.

It is a happy number.

It is a super-3 number, since 3×2406720³ = 41821341131833344000, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2406721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22026 + ... + 22134.

2^2406720 is an apocalyptic number.

2406720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2406720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4023360).

2406720 is an abundant number, since it is smaller than the sum of its proper divisors (5640000).

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

2406720 is a wasteful number, since it uses less digits than its factorization.

2406720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2406720 is about 1551.3606930692. The cubic root of 2406720 is about 134.0114343848.

The spelling of 2406720 in words is "two million, four hundred six thousand, seven hundred twenty".