3146720 has 48 divisors (see below), whose sum is σ = 7566048. Its totient is φ = 1236480.

The previous prime is 3146719. The next prime is 3146729. The reversal of 3146720 is 276413.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3146729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11222 + ... + 11498.

It is an arithmetic number, because the mean of its divisors is an integer number (157626).

Almost surely, 2^3146720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3146720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3783024).

3146720 is an abundant number, since it is smaller than the sum of its proper divisors (4419328).

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

3146720 is a wasteful number, since it uses less digits than its factorization.

3146720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 3146720 is about 1773.8996589435. The cubic root of 3146720 is about 146.5388233993.

The spelling of 3146720 in words is "three million, one hundred forty-six thousand, seven hundred twenty".