3047920 has 40 divisors (see below), whose sum is σ = 7320960. Its totient is φ = 1178880.

The previous prime is 3047911. The next prime is 3047921. The reversal of 3047920 is 297403.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3047921) 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, 1866 + ... + 3094.

It is an arithmetic number, because the mean of its divisors is an integer number (183024).

Almost surely, 2^3047920 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 3047920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3660480).

3047920 is an abundant number, since it is smaller than the sum of its proper divisors (4273040).

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

3047920 is a wasteful number, since it uses less digits than its factorization.

3047920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3047920 is about 1745.8293158267. The cubic root of 3047920 is about 144.9888219683.

The spelling of 3047920 in words is "three million, forty-seven thousand, nine hundred twenty".