2909242 has 16 divisors (see below), whose sum is σ = 5250240. Its totient is φ = 1181088.

The previous prime is 2909239. The next prime is 2909243. The reversal of 2909242 is 2429092.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2909242.

It is not an unprimeable number, because it can be changed into a prime (2909243) 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, 5203 + ... + 5734.

It is an arithmetic number, because the mean of its divisors is an integer number (328140).

2^2909242 is an apocalyptic number.

2909242 is a deficient number, since it is larger than the sum of its proper divisors (2340998).

2909242 is a wasteful number, since it uses less digits than its factorization.

2909242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10965.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2909242 is about 1705.6500227186. The cubic root of 2909242 is about 142.7556424722.

The spelling of 2909242 in words is "two million, nine hundred nine thousand, two hundred forty-two".