2909425 has 12 divisors (see below), whose sum is σ = 3733020. Its totient is φ = 2246720.

The previous prime is 2909419. The next prime is 2909429. The reversal of 2909425 is 5249092.

2909425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 9216 + 2900209 = 96^2 + 1703^2 .

It is not a de Polignac number, because 2909425 - 2⁵ = 2909393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2909429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1282 + ... + 2731.

It is an arithmetic number, because the mean of its divisors is an integer number (311085).

2^2909425 is an apocalyptic number.

2909425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2909425 is a deficient number, since it is larger than the sum of its proper divisors (823595).

2909425 is a wasteful number, since it uses less digits than its factorization.

2909425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052 (or 4047 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2909425 is about 1705.7036671122. The cubic root of 2909425 is about 142.7586356614.

The spelling of 2909425 in words is "two million, nine hundred nine thousand, four hundred twenty-five".