7421008 has 40 divisors (see below), whose sum is σ = 16570368. Its totient is φ = 3153792.

The previous prime is 7421003. The next prime is 7421009. The reversal of 7421008 is 8001247.

It is a self number, because there is not a number n which added to its sum of digits gives 7421008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421003) 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, 19185 + ... + 19567.

Almost surely, 2^7421008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7421008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8285184).

7421008 is an abundant number, since it is smaller than the sum of its proper divisors (9149360).

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

7421008 is a wasteful number, since it uses less digits than its factorization.

7421008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7421008 is about 2724.1527123126. The cubic root of 7421008 is about 195.0537480593.

The spelling of 7421008 in words is "seven million, four hundred twenty-one thousand, eight".