4245556 has 18 divisors (see below), whose sum is σ = 8643138. Its totient is φ = 1819440.

The previous prime is 4245551. The next prime is 4245599. The reversal of 4245556 is 6555424.

It can be written as a sum of positive squares in only one way, i.e., 3312400 + 933156 = 1820^2 + 966^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245551) 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 5 ways as a sum of consecutive naturals, for example, 10635 + ... + 11026.

Almost surely, 2^4245556 is an apocalyptic number.

It is an amenable number.

4245556 is an abundant number, since it is smaller than the sum of its proper divisors (4397582).

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

4245556 is a wasteful number, since it uses less digits than its factorization.

4245556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21679 (or 21670 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 4245556 is about 2060.4747025868. The cubic root of 4245556 is about 161.9241121981.

The spelling of 4245556 in words is "four million, two hundred forty-five thousand, five hundred fifty-six".