2380781 has 8 divisors (see below), whose sum is σ = 2624160. Its totient is φ = 2146032.

The previous prime is 2380771. The next prime is 2380787. The reversal of 2380781 is 1870832.

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 2380781 - 2⁶ = 2380717 is a prime.

It is a super-2 number, since 2×2380781² = 11336236339922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2380787) 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, 1571 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (328020).

2^2380781 is an apocalyptic number.

It is an amenable number.

2380781 is a deficient number, since it is larger than the sum of its proper divisors (243379).

2380781 is a wasteful number, since it uses less digits than its factorization.

2380781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2380781 is about 1542.9779648459. The cubic root of 2380781 is about 133.5282475634.

The spelling of 2380781 in words is "two million, three hundred eighty thousand, seven hundred eighty-one".