3145880 has 64 divisors (see below), whose sum is σ = 7603200. Its totient is φ = 1169280.

The previous prime is 3145873. The next prime is 3145897. The reversal of 3145880 is 885413.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53291 + ... + 53349.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

Almost surely, 2^3145880 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 3145880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3801600).

3145880 is an abundant number, since it is smaller than the sum of its proper divisors (4457320).

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

3145880 is a wasteful number, since it uses less digits than its factorization.

3145880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 3145880 is about 1773.6628766482. The cubic root of 3145880 is about 146.5257829883.

The spelling of 3145880 in words is "three million, one hundred forty-five thousand, eight hundred eighty".