7042420 has 96 divisors (see below), whose sum is σ = 19595520. Its totient is φ = 2058240.

The previous prime is 7042391. The next prime is 7042421. The reversal of 7042420 is 242407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26046 + ... + 26314.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

Almost surely, 2^7042420 is an apocalyptic number.

7042420 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 7042420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9797760).

7042420 is an abundant number, since it is smaller than the sum of its proper divisors (12553100).

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

7042420 is a wasteful number, since it uses less digits than its factorization.

7042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 7042420 is about 2653.7558290091. The cubic root of 7042420 is about 191.6787524410.

Adding to 7042420 its reverse (242407), we get a palindrome (7284827).

The spelling of 7042420 in words is "seven million, forty-two thousand, four hundred twenty".