2905390 has 8 divisors (see below), whose sum is σ = 5229720. Its totient is φ = 1162152.

The previous prime is 2905367. The next prime is 2905393. The reversal of 2905390 is 935092.

2905390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905393) 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 3 ways as a sum of consecutive naturals, for example, 145260 + ... + 145279.

It is an arithmetic number, because the mean of its divisors is an integer number (653715).

2^2905390 is an apocalyptic number.

2905390 is a deficient number, since it is larger than the sum of its proper divisors (2324330).

2905390 is a wasteful number, since it uses less digits than its factorization.

2905390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290546.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 2905390 is about 1704.5204604228. The cubic root of 2905390 is about 142.6926091448.

The spelling of 2905390 in words is "two million, nine hundred five thousand, three hundred ninety".