3218458420 has 48 divisors (see below), whose sum is σ = 6857544960. Its totient is φ = 1268631936.

The previous prime is 3218458391. The next prime is 3218458423. The reversal of 3218458420 is 248548123.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3218458420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218458423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966879 + ... + 970201.

It is an arithmetic number, because the mean of its divisors is an integer number (142865520).

Almost surely, 2^3218458420 is an apocalyptic number.

It is an amenable number.

3218458420 is an abundant number, since it is smaller than the sum of its proper divisors (3639086540).

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

3218458420 is a wasteful number, since it uses less digits than its factorization.

3218458420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024 (or 4022 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 3218458420 is about 56731.4588213629. The cubic root of 3218458420 is about 1476.4405606334.

The spelling of 3218458420 in words is "three billion, two hundred eighteen million, four hundred fifty-eight thousand, four hundred twenty".