2393405 has 12 divisors (see below), whose sum is σ = 3341340. Its totient is φ = 1641024.

The previous prime is 2393389. The next prime is 2393407. The reversal of 2393405 is 5043932.

It can be written as a sum of positive squares in 2 ways, for example, as 840889 + 1552516 = 917^2 + 1246^2 .

It is not a de Polignac number, because 2393405 - 2⁴ = 2393389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2393407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4640 + ... + 5129.

It is an arithmetic number, because the mean of its divisors is an integer number (278445).

2^2393405 is an apocalyptic number.

It is an amenable number.

2393405 is a deficient number, since it is larger than the sum of its proper divisors (947935).

2393405 is an equidigital number, since it uses as much as digits as its factorization.

2393405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9788 (or 9781 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2393405 is about 1547.0633471193. The cubic root of 2393405 is about 133.7638411157.

The spelling of 2393405 in words is "two million, three hundred ninety-three thousand, four hundred five".