4225090 has 16 divisors (see below), whose sum is σ = 7630200. Its totient is φ = 1684480.

The previous prime is 4225079. The next prime is 4225099. The reversal of 4225090 is 905224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3736489 + 488601 = 1933^2 + 699^2 .

It is not an unprimeable number, because it can be changed into a prime (4225099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4020 + ... + 4960.

Almost surely, 2^4225090 is an apocalyptic number.

4225090 is a deficient number, since it is larger than the sum of its proper divisors (3405110).

4225090 is a wasteful number, since it uses less digits than its factorization.

4225090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 4225090 is about 2055.5023716844. The cubic root of 4225090 is about 161.6635041481.

It can be divided in two parts, 42250 and 90, that multiplied together give a square (3802500 = 1950²).

The spelling of 4225090 in words is "four million, two hundred twenty-five thousand, ninety".