4034421 has 8 divisors (see below), whose sum is σ = 5976960. Its totient is φ = 2689596.

The previous prime is 4034411. The next prime is 4034449. The reversal of 4034421 is 1244304.

It is a de Polignac number, because none of the positive numbers 2^k-4034421 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4034394 and 4034403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4034411) 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, 74685 + ... + 74738.

It is an arithmetic number, because the mean of its divisors is an integer number (747120).

Almost surely, 2^4034421 is an apocalyptic number.

It is an amenable number.

4034421 is a deficient number, since it is larger than the sum of its proper divisors (1942539).

4034421 is a wasteful number, since it uses less digits than its factorization.

4034421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149432 (or 149426 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4034421 is about 2008.5868166450. The cubic root of 4034421 is about 159.1941380845.

Adding to 4034421 its reverse (1244304), we get a palindrome (5278725).

The spelling of 4034421 in words is "four million, thirty-four thousand, four hundred twenty-one".