7045830 has 72 divisors (see below), whose sum is σ = 20167056. Its totient is φ = 1705440.

The previous prime is 7045823. The next prime is 7045849. The reversal of 7045830 is 385407.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7045794 and 7045803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10567 + ... + 11213.

It is an arithmetic number, because the mean of its divisors is an integer number (280098).

Almost surely, 2^7045830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7045830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10083528).

7045830 is an abundant number, since it is smaller than the sum of its proper divisors (13121226).

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

7045830 is a wasteful number, since it uses less digits than its factorization.

7045830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 7045830 is about 2654.3982368891. The cubic root of 7045830 is about 191.7096849461.

It can be divided in two parts, 7045 and 830, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 7045830 in words is "seven million, forty-five thousand, eight hundred thirty".