3148840 has 16 divisors (see below), whose sum is σ = 7084980. Its totient is φ = 1259520.

The previous prime is 3148829. The next prime is 3148867. The reversal of 3148840 is 488413.

It can be written as a sum of positive squares in 2 ways, for example, as 3147076 + 1764 = 1774^2 + 42^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3148799 and 3148808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39321 + ... + 39400.

Almost surely, 2^3148840 is an apocalyptic number.

It is an amenable number.

3148840 is an abundant number, since it is smaller than the sum of its proper divisors (3936140).

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

3148840 is a wasteful number, since it uses less digits than its factorization.

3148840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78732 (or 78728 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 3148840 is about 1774.4971118601. The cubic root of 3148840 is about 146.5717245964.

The spelling of 3148840 in words is "three million, one hundred forty-eight thousand, eight hundred forty".