7042830 has 64 divisors (see below), whose sum is σ = 18040320. Its totient is φ = 1755776.

The previous prime is 7042829. The next prime is 7042843. The reversal of 7042830 is 382407.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7042830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40624 + ... + 40796.

It is an arithmetic number, because the mean of its divisors is an integer number (281880).

Almost surely, 2^7042830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7042830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9020160).

7042830 is an abundant number, since it is smaller than the sum of its proper divisors (10997490).

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

7042830 is a wasteful number, since it uses less digits than its factorization.

7042830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 7042830 is about 2653.8330768909. The cubic root of 7042830 is about 191.6824721265.

The spelling of 7042830 in words is "seven million, forty-two thousand, eight hundred thirty".