4287820 has 12 divisors (see below), whose sum is σ = 9004464. Its totient is φ = 1715120.

The previous prime is 4287809. The next prime is 4287823. The reversal of 4287820 is 287824.

It is not an unprimeable number, because it can be changed into a prime (4287823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107176 + ... + 107215.

It is an arithmetic number, because the mean of its divisors is an integer number (750372).

Almost surely, 2^4287820 is an apocalyptic number.

It is an amenable number.

4287820 is an abundant number, since it is smaller than the sum of its proper divisors (4716644).

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

4287820 is a wasteful number, since it uses less digits than its factorization.

4287820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214400 (or 214398 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 4287820 is about 2070.7051938893. The cubic root of 4287820 is about 162.4596507315.

The spelling of 4287820 in words is "four million, two hundred eighty-seven thousand, eight hundred twenty".