4218820040 has 32 divisors (see below), whose sum is σ = 9991944000. Its totient is φ = 1598710464.

The previous prime is 4218820027. The next prime is 4218820043. The reversal of 4218820040 is 400288124.

It is a junction number, because it is equal to n+sod(n) for n = 4218819985 and 4218820012.

It is not an unprimeable number, because it can be changed into a prime (4218820043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2774780 + ... + 2776299.

It is an arithmetic number, because the mean of its divisors is an integer number (312248250).

Almost surely, 2^4218820040 is an apocalyptic number.

4218820040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4218820040 is an abundant number, since it is smaller than the sum of its proper divisors (5773123960).

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

4218820040 is a wasteful number, since it uses less digits than its factorization.

4218820040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551109 (or 5551105 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 4218820040 is about 64952.4444497665. Note that the first 5 decimals coincide. The cubic root of 4218820040 is about 1615.8349594955.

The spelling of 4218820040 in words is "four billion, two hundred eighteen million, eight hundred twenty thousand, forty".