7275408 has 80 divisors (see below), whose sum is σ = 21903360. Its totient is φ = 2037888.

The previous prime is 7275403. The next prime is 7275427. The reversal of 7275408 is 8045727.

It is not an unprimeable number, because it can be changed into a prime (7275403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19641 + ... + 20007.

It is an arithmetic number, because the mean of its divisors is an integer number (273792).

Almost surely, 2^7275408 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 7275408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10951680).

7275408 is an abundant number, since it is smaller than the sum of its proper divisors (14627952).

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

7275408 is a wasteful number, since it uses less digits than its factorization.

7275408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 7275408 is about 2697.2964241996. The cubic root of 7275408 is about 193.7696632142.

The spelling of 7275408 in words is "seven million, two hundred seventy-five thousand, four hundred eight".