7028940 has 48 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 1813440.

The previous prime is 7028921. The next prime is 7028941. The reversal of 7028940 is 498207.

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

It is a junction number, because it is equal to n+sod(n) for n = 7028898 and 7028907.

It is not an unprimeable number, because it can be changed into a prime (7028941) 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, 30 + ... + 3749.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^7028940 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 7028940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10160640).

7028940 is an abundant number, since it is smaller than the sum of its proper divisors (13292340).

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

7028940 is a wasteful number, since it uses less digits than its factorization.

7028940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7028940 is about 2651.2148158910. The cubic root of 7028940 is about 191.5563759511.

The spelling of 7028940 in words is "seven million, twenty-eight thousand, nine hundred forty".