2905245 has 48 divisors (see below), whose sum is σ = 6020352. Its totient is φ = 1267200.

The previous prime is 2905241. The next prime is 2905267. The reversal of 2905245 is 5425092.

2905245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2905245 - 2² = 2905241 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905241) 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 47 ways as a sum of consecutive naturals, for example, 7045 + ... + 7445.

It is an arithmetic number, because the mean of its divisors is an integer number (125424).

2^2905245 is an apocalyptic number.

It is an amenable number.

2905245 is an abundant number, since it is smaller than the sum of its proper divisors (3115107).

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

2905245 is a wasteful number, since it uses less digits than its factorization.

2905245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2905245 is about 1704.4779259351. The cubic root of 2905245 is about 142.6902353071.

The spelling of 2905245 in words is "two million, nine hundred five thousand, two hundred forty-five".