4028620 has 24 divisors (see below), whose sum is σ = 8520624. Its totient is φ = 1599936.

The previous prime is 4028603. The next prime is 4028621. The reversal of 4028620 is 268204.

It is a junction number, because it is equal to n+sod(n) for n = 4028591 and 4028600.

It is not an unprimeable number, because it can be changed into a prime (4028621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2499 + ... + 3781.

It is an arithmetic number, because the mean of its divisors is an integer number (355026).

Almost surely, 2^4028620 is an apocalyptic number.

It is an amenable number.

4028620 is an abundant number, since it is smaller than the sum of its proper divisors (4492004).

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

4028620 is a wasteful number, since it uses less digits than its factorization.

4028620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4028620 is about 2007.1422470767. The cubic root of 4028620 is about 159.1178009705.

The spelling of 4028620 in words is "four million, twenty-eight thousand, six hundred twenty".