7422420 has 24 divisors (see below), whose sum is σ = 20782944. Its totient is φ = 1979296.

The previous prime is 7422413. The next prime is 7422431. The reversal of 7422420 is 242247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61794 + ... + 61913.

It is an arithmetic number, because the mean of its divisors is an integer number (865956).

Almost surely, 2^7422420 is an apocalyptic number.

It is an amenable number.

7422420 is an abundant number, since it is smaller than the sum of its proper divisors (13360524).

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

7422420 is a wasteful number, since it uses less digits than its factorization.

7422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123719 (or 123717 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 7422420 is about 2724.4118631367. The cubic root of 7422420 is about 195.0661182758.

Adding to 7422420 its reverse (242247), we get a palindrome (7664667).

The spelling of 7422420 in words is "seven million, four hundred twenty-two thousand, four hundred twenty".