7421146 has 16 divisors (see below), whose sum is σ = 11866176. Its totient is φ = 3468736.

The previous prime is 7421143. The next prime is 7421173. The reversal of 7421146 is 6411247.

It is a self number, because there is not a number n which added to its sum of digits gives 7421146.

It is not an unprimeable number, because it can be changed into a prime (7421143) 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 7 ways as a sum of consecutive naturals, for example, 5025 + ... + 6331.

It is an arithmetic number, because the mean of its divisors is an integer number (741636).

Almost surely, 2^7421146 is an apocalyptic number.

7421146 is a deficient number, since it is larger than the sum of its proper divisors (4445030).

7421146 is a wasteful number, since it uses less digits than its factorization.

7421146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493.

The product of its digits is 1344, while the sum is 25.

The square root of 7421146 is about 2724.1780411713. The cubic root of 7421146 is about 195.0549571156.

The spelling of 7421146 in words is "seven million, four hundred twenty-one thousand, one hundred forty-six".