7438420 has 24 divisors (see below), whose sum is σ = 17041248. Its totient is φ = 2704800.

The previous prime is 7438399. The next prime is 7438423. The reversal of 7438420 is 248347.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7438423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16686 + ... + 17125.

It is an arithmetic number, because the mean of its divisors is an integer number (710052).

Almost surely, 2^7438420 is an apocalyptic number.

It is an amenable number.

7438420 is an abundant number, since it is smaller than the sum of its proper divisors (9602828).

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

7438420 is a wasteful number, since it uses less digits than its factorization.

7438420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33831 (or 33829 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 7438420 is about 2727.3466959666. The cubic root of 7438420 is about 195.2061812183.

The spelling of 7438420 in words is "seven million, four hundred thirty-eight thousand, four hundred twenty".