2405761 has 8 divisors (see below), whose sum is σ = 2554880. Its totient is φ = 2258928.

The previous prime is 2405749. The next prime is 2405773. The reversal of 2405761 is 1675042.

It is an interprime number because it is at equal distance from previous prime (2405749) and next prime (2405773).

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 2405761 - 2⁵ = 2405729 is a prime.

It is a Duffinian number.

2405761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2405701) 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, 1915 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (319360).

2^2405761 is an apocalyptic number.

2405761 is the 896-th hex number.

It is an amenable number.

2405761 is a deficient number, since it is larger than the sum of its proper divisors (149119).

2405761 is a wasteful number, since it uses less digits than its factorization.

2405761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2405761 is about 1551.0515787684. The cubic root of 2405761 is about 133.9936322808.

The spelling of 2405761 in words is "two million, four hundred five thousand, seven hundred sixty-one".