2405965 has 8 divisors (see below), whose sum is σ = 2896920. Its totient is φ = 1918272.

The previous prime is 2405929. The next prime is 2405971. The reversal of 2405965 is 5695042.

2405965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 233289 + 2172676 = 483^2 + 1474^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2405965 - 2¹⁷ = 2274893 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1327 + ... + 2563.

It is an arithmetic number, because the mean of its divisors is an integer number (362115).

2^2405965 is an apocalyptic number.

It is an amenable number.

2405965 is a deficient number, since it is larger than the sum of its proper divisors (490955).

2405965 is a wasteful number, since it uses less digits than its factorization.

2405965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2405965 is about 1551.1173392107. The cubic root of 2405965 is about 133.9974195686.

The spelling of 2405965 in words is "two million, four hundred five thousand, nine hundred sixty-five".