2392405 has 4 divisors (see below), whose sum is σ = 2870892. Its totient is φ = 1913920.

The previous prime is 2392373. The next prime is 2392421. The reversal of 2392405 is 5042932.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1044484 + 1347921 = 1022^2 + 1161^2 .

It is not a de Polignac number, because 2392405 - 2⁵ = 2392373 is a prime.

It is a Duffinian number.

2392405 is a lucky number.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 2392405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239236 + ... + 239245.

It is an arithmetic number, because the mean of its divisors is an integer number (717723).

2^2392405 is an apocalyptic number.

It is an amenable number.

2392405 is a deficient number, since it is larger than the sum of its proper divisors (478487).

2392405 is an equidigital number, since it uses as much as digits as its factorization.

2392405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478486.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2392405 is about 1546.7401203822. The cubic root of 2392405 is about 133.7452090170.

The spelling of 2392405 in words is "two million, three hundred ninety-two thousand, four hundred five".