4945820 has 24 divisors (see below), whose sum is σ = 11330928. Its totient is φ = 1798400.

The previous prime is 4945813. The next prime is 4945849. The reversal of 4945820 is 285494.

It is a super-2 number, since 2×4945820² = 48922270944800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11021 + ... + 11460.

It is an arithmetic number, because the mean of its divisors is an integer number (472122).

Almost surely, 2^4945820 is an apocalyptic number.

It is an amenable number.

4945820 is an abundant number, since it is smaller than the sum of its proper divisors (6385108).

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

4945820 is a wasteful number, since it uses less digits than its factorization.

4945820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22501 (or 22499 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 4945820 is about 2223.9199625886. The cubic root of 4945820 is about 170.3777069001.

The spelling of 4945820 in words is "four million, nine hundred forty-five thousand, eight hundred twenty".