4340781 has 6 divisors (see below), whose sum is σ = 6270030. Its totient is φ = 2893848.

The previous prime is 4340773. The next prime is 4340783. The reversal of 4340781 is 1870434.

It can be written as a sum of positive squares in only one way, i.e., 3006756 + 1334025 = 1734^2 + 1155^2 .

It is not a de Polignac number, because 4340781 - 2³ = 4340773 is a prime.

It is a super-2 number, since 2×4340781² = 37684759379922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4340783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 241146 + ... + 241163.

It is an arithmetic number, because the mean of its divisors is an integer number (1045005).

Almost surely, 2^4340781 is an apocalyptic number.

It is an amenable number.

4340781 is a deficient number, since it is larger than the sum of its proper divisors (1929249).

4340781 is a wasteful number, since it uses less digits than its factorization.

4340781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482315 (or 482312 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4340781 is about 2083.4541031662. The cubic root of 4340781 is about 163.1257889599.

The spelling of 4340781 in words is "four million, three hundred forty thousand, seven hundred eighty-one".