3189420 has 144 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 741888.

The previous prime is 3189419. The next prime is 3189427. The reversal of 3189420 is 249813.

It is not an unprimeable number, because it can be changed into a prime (3189427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67837 + ... + 67883.

It is an arithmetic number, because the mean of its divisors is an integer number (76440).

Almost surely, 2^3189420 is an apocalyptic number.

3189420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3189420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5503680).

3189420 is an abundant number, since it is smaller than the sum of its proper divisors (7817940).

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

3189420 is a wasteful number, since it uses less digits than its factorization.

3189420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 3189420 is about 1785.8947337399. The cubic root of 3189420 is about 147.1986762444.

The spelling of 3189420 in words is "three million, one hundred eighty-nine thousand, four hundred twenty".