2903240 has 32 divisors (see below), whose sum is σ = 6584760. Its totient is φ = 1152000.

The previous prime is 2903227. The next prime is 2903249. The reversal of 2903240 is 423092.

It can be written as a sum of positive squares in 4 ways, for example, as 2328676 + 574564 = 1526^2 + 758^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2903249) 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, 7040 + ... + 7440.

2^2903240 is an apocalyptic number.

2903240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2903240 is an abundant number, since it is smaller than the sum of its proper divisors (3681520).

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

2903240 is a wasteful number, since it uses less digits than its factorization.

2903240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2903240 is about 1703.8896677896. The cubic root of 2903240 is about 142.6574027622.

The spelling of 2903240 in words is "two million, nine hundred three thousand, two hundred forty".