444720923 has 4 divisors (see below), whose sum is σ = 446581920. Its totient is φ = 442859928.

The previous prime is 444720919. The next prime is 444720929. The reversal of 444720923 is 329027444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444720923 - 2² = 444720919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444720929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930140 + ... + 930617.

It is an arithmetic number, because the mean of its divisors is an integer number (111645480).

Almost surely, 2^444720923 is an apocalyptic number.

444720923 is a deficient number, since it is larger than the sum of its proper divisors (1860997).

444720923 is a wasteful number, since it uses less digits than its factorization.

444720923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860996.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 444720923 is about 21088.4073130239. The cubic root of 444720923 is about 763.3010400370.

The spelling of 444720923 in words is "four hundred forty-four million, seven hundred twenty thousand, nine hundred twenty-three".