4421425 has 6 divisors (see below), whose sum is σ = 5482598. Its totient is φ = 3537120.

The previous prime is 4421423. The next prime is 4421447. The reversal of 4421425 is 5241244.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1238769 + 3182656 = 1113^2 + 1784^2 .

It is not a de Polignac number, because 4421425 - 2¹ = 4421423 is a prime.

It is a Duffinian number.

4421425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4421396 and 4421405.

It is not an unprimeable number, because it can be changed into a prime (4421423) 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, 88404 + ... + 88453.

Almost surely, 2^4421425 is an apocalyptic number.

It is an amenable number.

4421425 is a deficient number, since it is larger than the sum of its proper divisors (1061173).

4421425 is a wasteful number, since it uses less digits than its factorization.

4421425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176867 (or 176862 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 4421425 is about 2102.7184785415. The cubic root of 4421425 is about 164.1297926521.

Adding to 4421425 its reverse (5241244), we get a palindrome (9662669).

The spelling of 4421425 in words is "four million, four hundred twenty-one thousand, four hundred twenty-five".