2470720 has 56 divisors (see below), whose sum is σ = 6729984. Its totient is φ = 846336.

The previous prime is 2470697. The next prime is 2470739. The reversal of 2470720 is 270742.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×2470720² = 12208914636800, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2470691 and 2470700.

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, 1689 + ... + 2791.

2^2470720 is an apocalyptic number.

2470720 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 2470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3364992).

2470720 is an abundant number, since it is smaller than the sum of its proper divisors (4259264).

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

2470720 is a wasteful number, since it uses less digits than its factorization.

2470720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 2470720 is about 1571.8524103745. The cubic root of 2470720 is about 135.1889443944.

Adding to 2470720 its sum of digits (22), we get a palindrome (2470742).

The spelling of 2470720 in words is "two million, four hundred seventy thousand, seven hundred twenty".