4288420 has 24 divisors (see below), whose sum is σ = 9536184. Its totient is φ = 1614336.

The previous prime is 4288397. The next prime is 4288439. The reversal of 4288420 is 248824.

It can be written as a sum of positive squares in 4 ways, for example, as 746496 + 3541924 = 864^2 + 1882^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5967 + ... + 6646.

It is an arithmetic number, because the mean of its divisors is an integer number (397341).

Almost surely, 2^4288420 is an apocalyptic number.

It is an amenable number.

4288420 is an abundant number, since it is smaller than the sum of its proper divisors (5247764).

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

4288420 is a wasteful number, since it uses less digits than its factorization.

4288420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12639 (or 12637 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 4288420 is about 2070.8500670015. The cubic root of 4288420 is about 162.4672281052.

The spelling of 4288420 in words is "four million, two hundred eighty-eight thousand, four hundred twenty".