2902720 has 56 divisors (see below), whose sum is σ = 7095744. Its totient is φ = 1130496.

The previous prime is 2902717. The next prime is 2902723. The reversal of 2902720 is 272092.

2902720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2902717) and next prime (2902723).

It is a junction number, because it is equal to n+sod(n) for n = 2902691 and 2902700.

It is not an unprimeable number, because it can be changed into a prime (2902723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14944 + ... + 15136.

2^2902720 is an apocalyptic number.

2902720 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 2902720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3547872).

2902720 is an abundant number, since it is smaller than the sum of its proper divisors (4193024).

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

2902720 is a wasteful number, since it uses less digits than its factorization.

2902720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2902720 is about 1703.7370689164. The cubic root of 2902720 is about 142.6488851200.

The spelling of 2902720 in words is "two million, nine hundred two thousand, seven hundred twenty".