7444820 has 12 divisors (see below), whose sum is σ = 15634164. Its totient is φ = 2977920.

The previous prime is 7444813. The next prime is 7444823. The reversal of 7444820 is 284447.

7444820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3579664 + 3865156 = 1892^2 + 1966^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7444823) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 186101 + ... + 186140.

It is an arithmetic number, because the mean of its divisors is an integer number (1302847).

Almost surely, 2^7444820 is an apocalyptic number.

It is an amenable number.

7444820 is an abundant number, since it is smaller than the sum of its proper divisors (8189344).

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

7444820 is a wasteful number, since it uses less digits than its factorization.

7444820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372250 (or 372248 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 7444820 is about 2728.5197452098. The cubic root of 7444820 is about 195.2621501574.

The spelling of 7444820 in words is "seven million, four hundred forty-four thousand, eight hundred twenty".