7275450 has 144 divisors (see below), whose sum is σ = 22873536. Its totient is φ = 1497600.

The previous prime is 7275431. The next prime is 7275451. The reversal of 7275450 is 545727.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7275451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 177430 + ... + 177470.

It is an arithmetic number, because the mean of its divisors is an integer number (158844).

Almost surely, 2^7275450 is an apocalyptic number.

7275450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7275450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11436768).

7275450 is an abundant number, since it is smaller than the sum of its proper divisors (15598086).

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

7275450 is a wasteful number, since it uses less digits than its factorization.

7275450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 7275450 is about 2697.3042097620. The cubic root of 7275450 is about 193.7700360827.

The spelling of 7275450 in words is "seven million, two hundred seventy-five thousand, four hundred fifty".