3147940 has 24 divisors (see below), whose sum is σ = 6676992. Its totient is φ = 1246560.

The previous prime is 3147929. The next prime is 3147953. The reversal of 3147940 is 497413.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3147899 and 3147908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (278208).

Almost surely, 2^3147940 is an apocalyptic number.

It is an amenable number.

3147940 is an abundant number, since it is smaller than the sum of its proper divisors (3529052).

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

3147940 is a wasteful number, since it uses less digits than its factorization.

3147940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 3147940 is about 1774.2435007631. The cubic root of 3147940 is about 146.5577589115.

The spelling of 3147940 in words is "three million, one hundred forty-seven thousand, nine hundred forty".