2405390 has 16 divisors (see below), whose sum is σ = 4663008. Its totient is φ = 888096.

The previous prime is 2405387. The next prime is 2405393. The reversal of 2405390 is 935042.

It is an interprime number because it is at equal distance from previous prime (2405387) and next prime (2405393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405393) 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, 9122 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (291438).

2^2405390 is an apocalyptic number.

2405390 is a deficient number, since it is larger than the sum of its proper divisors (2257618).

2405390 is a wasteful number, since it uses less digits than its factorization.

2405390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18523.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2405390 is about 1550.9319778765. The cubic root of 2405390 is about 133.9867440663.

The spelling of 2405390 in words is "two million, four hundred five thousand, three hundred ninety".