4219825 has 12 divisors (see below), whose sum is σ = 5540940. Its totient is φ = 3176960.

The previous prime is 4219823. The next prime is 4219847. The reversal of 4219825 is 5289124.

It can be written as a sum of positive squares in 6 ways, for example, as 94864 + 4124961 = 308^2 + 2031^2 .

It is not a de Polignac number, because 4219825 - 2¹ = 4219823 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4219823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4540 + ... + 5389.

It is an arithmetic number, because the mean of its divisors is an integer number (461745).

Almost surely, 2^4219825 is an apocalyptic number.

It is an amenable number.

4219825 is a deficient number, since it is larger than the sum of its proper divisors (1321115).

4219825 is a wasteful number, since it uses less digits than its factorization.

4219825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9956 (or 9951 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 4219825 is about 2054.2212636423. The cubic root of 4219825 is about 161.5963251337.

The spelling of 4219825 in words is "four million, two hundred nineteen thousand, eight hundred twenty-five".