2920240 has 40 divisors (see below), whose sum is σ = 6861168. Its totient is φ = 1155840.

The previous prime is 2920237. The next prime is 2920249. The reversal of 2920240 is 420292.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2920249) 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, 13735 + ... + 13945.

2^2920240 is an apocalyptic number.

2920240 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 2920240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3430584).

2920240 is an abundant number, since it is smaller than the sum of its proper divisors (3940928).

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

2920240 is a wasteful number, since it uses less digits than its factorization.

2920240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2920240 is about 1708.8709723089. The cubic root of 2920240 is about 142.9353057975.

It can be divided in two parts, 2920 and 240, that added together give a triangular number (3160 = T₇₉).

The spelling of 2920240 in words is "two million, nine hundred twenty thousand, two hundred forty".