7028140 has 48 divisors (see below), whose sum is σ = 17865792. Its totient is φ = 2267136.

The previous prime is 7028137. The next prime is 7028141. The reversal of 7028140 is 418207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7028141) 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, 904 + ... + 3856.

It is an arithmetic number, because the mean of its divisors is an integer number (372204).

Almost surely, 2^7028140 is an apocalyptic number.

7028140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7028140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8932896).

7028140 is an abundant number, since it is smaller than the sum of its proper divisors (10837652).

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

7028140 is a wasteful number, since it uses less digits than its factorization.

7028140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986 (or 2984 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7028140 is about 2651.0639373655. The cubic root of 7028140 is about 191.5491083349.

The spelling of 7028140 in words is "seven million, twenty-eight thousand, one hundred forty".