7123980 has 48 divisors (see below), whose sum is σ = 20492640. Its totient is φ = 1847808.

The previous prime is 7123957. The next prime is 7123981. The reversal of 7123980 is 893217.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (7123981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616 + ... + 3824.

It is an arithmetic number, because the mean of its divisors is an integer number (426930).

Almost surely, 2^7123980 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 7123980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10246320).

7123980 is an abundant number, since it is smaller than the sum of its proper divisors (13368660).

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

7123980 is a wasteful number, since it uses less digits than its factorization.

7123980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258 (or 3256 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 7123980 is about 2669.0784926637. The cubic root of 7123980 is about 192.4158737370.

The spelling of 7123980 in words is "seven million, one hundred twenty-three thousand, nine hundred eighty".