4034781 has 6 divisors (see below), whose sum is σ = 5828030. Its totient is φ = 2689848.

The previous prime is 4034777. The next prime is 4034791. The reversal of 4034781 is 1874304.

It can be written as a sum of positive squares in only one way, i.e., 3980025 + 54756 = 1995^2 + 234^2 .

It is not a de Polignac number, because 4034781 - 2² = 4034777 is a prime.

It is a super-2 number, since 2×4034781² = 32558915435922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4034761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224146 + ... + 224163.

Almost surely, 2^4034781 is an apocalyptic number.

It is an amenable number.

4034781 is a deficient number, since it is larger than the sum of its proper divisors (1793249).

4034781 is a wasteful number, since it uses less digits than its factorization.

4034781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448315 (or 448312 counting only the distinct ones).

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

The square root of 4034781 is about 2008.6764298911. The cubic root of 4034781 is about 159.1988730213.

It can be divided in two parts, 403 and 4781, that added together give a square (5184 = 72²).

The spelling of 4034781 in words is "four million, thirty-four thousand, seven hundred eighty-one".