7421450 has 12 divisors (see below), whose sum is σ = 13803990. Its totient is φ = 2968560.

The previous prime is 7421437. The next prime is 7421471. The reversal of 7421450 is 541247.

It can be written as a sum of positive squares in 3 ways, for example, as 4206601 + 3214849 = 2051^2 + 1793^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74165 + ... + 74264.

Almost surely, 2^7421450 is an apocalyptic number.

7421450 is a deficient number, since it is larger than the sum of its proper divisors (6382540).

7421450 is a wasteful number, since it uses less digits than its factorization.

7421450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148441 (or 148436 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 7421450 is about 2724.2338372467. The cubic root of 7421450 is about 195.0576204912.

Adding to 7421450 its reverse (541247), we get a palindrome (7962697).

The spelling of 7421450 in words is "seven million, four hundred twenty-one thousand, four hundred fifty".