2465781 has 8 divisors (see below), whose sum is σ = 3368064. Its totient is φ = 1603680.

The previous prime is 2465777. The next prime is 2465789. The reversal of 2465781 is 1875642.

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

It is not a de Polignac number, because 2465781 - 2² = 2465777 is a prime.

It is a super-2 number, since 2×2465781² = 12160151879922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2465789) 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, 9901 + ... + 10146.

It is an arithmetic number, because the mean of its divisors is an integer number (421008).

2^2465781 is an apocalyptic number.

It is an amenable number.

2465781 is a deficient number, since it is larger than the sum of its proper divisors (902283).

2465781 is a wasteful number, since it uses less digits than its factorization.

2465781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20091.

The product of its digits is 13440, while the sum is 33.

The square root of 2465781 is about 1570.2805481824. The cubic root of 2465781 is about 135.0988028427.

The spelling of 2465781 in words is "two million, four hundred sixty-five thousand, seven hundred eighty-one".