444442653 has 16 divisors (see below), whose sum is σ = 658794240. Its totient is φ = 296132832.

The previous prime is 444442633. The next prime is 444442657. The reversal of 444442653 is 356244444.

It is not a de Polignac number, because 444442653 - 2¹⁰ = 444441629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444442657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65425 + ... + 71897.

It is an arithmetic number, because the mean of its divisors is an integer number (41174640).

Almost surely, 2^444442653 is an apocalyptic number.

It is an amenable number.

444442653 is a deficient number, since it is larger than the sum of its proper divisors (214351587).

444442653 is a wasteful number, since it uses less digits than its factorization.

444442653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9025 (or 9019 counting only the distinct ones).

The product of its digits is 184320, while the sum is 36.

The square root of 444442653 is about 21081.8085799108. The cubic root of 444442653 is about 763.1418030215.

The spelling of 444442653 in words is "four hundred forty-four million, four hundred forty-two thousand, six hundred fifty-three".