3147420 has 24 divisors (see below), whose sum is σ = 8812944. Its totient is φ = 839296.

The previous prime is 3147349. The next prime is 3147421. The reversal of 3147420 is 247413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3147421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26169 + ... + 26288.

It is an arithmetic number, because the mean of its divisors is an integer number (367206).

Almost surely, 2^3147420 is an apocalyptic number.

3147420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3147420 is an abundant number, since it is smaller than the sum of its proper divisors (5665524).

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

3147420 is a wasteful number, since it uses less digits than its factorization.

3147420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52469 (or 52467 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 3147420 is about 1774.0969533822. The cubic root of 3147420 is about 146.5496886358.

The spelling of 3147420 in words is "three million, one hundred forty-seven thousand, four hundred twenty".