7021044 has 18 divisors (see below), whose sum is σ = 17747730. Its totient is φ = 2340336.

The previous prime is 7021033. The next prime is 7021057. The reversal of 7021044 is 4401207.

It is a happy number.

7021044 is digitally balanced in base 4, 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 only one way, i.e., 5116644 + 1904400 = 2262^2 + 1380^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97479 + ... + 97550.

It is an arithmetic number, because the mean of its divisors is an integer number (985985).

Almost surely, 2^7021044 is an apocalyptic number.

It is an amenable number.

7021044 is an abundant number, since it is smaller than the sum of its proper divisors (10726686).

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

7021044 is a wasteful number, since it uses less digits than its factorization.

7021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195039 (or 195034 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 7021044 is about 2649.7252687779. The cubic root of 7021044 is about 191.4846204248.

The spelling of 7021044 in words is "seven million, twenty-one thousand, forty-four".