4225540 has 24 divisors (see below), whose sum is σ = 9680832. Its totient is φ = 1536480.

The previous prime is 4225523. The next prime is 4225541. The reversal of 4225540 is 455224.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (4225541) 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, 9384 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (403368).

Almost surely, 2^4225540 is an apocalyptic number.

It is an amenable number.

4225540 is an abundant number, since it is smaller than the sum of its proper divisors (5455292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4225540 is a wasteful number, since it uses less digits than its factorization.

4225540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19227 (or 19225 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4225540 is about 2055.6118310615. The cubic root of 4225540 is about 161.6692433547.

The spelling of 4225540 in words is "four million, two hundred twenty-five thousand, five hundred forty".