444997959 has 24 divisors (see below), whose sum is σ = 691149168. Its totient is φ = 253935360.

The previous prime is 444997957. The next prime is 444998003. The reversal of 444997959 is 959799444.

It is a happy number.

It is not a de Polignac number, because 444997959 - 2¹ = 444997957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444997957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136719 + ... + 139935.

It is an arithmetic number, because the mean of its divisors is an integer number (28797882).

Almost surely, 2^444997959 is an apocalyptic number.

444997959 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

444997959 is a deficient number, since it is larger than the sum of its proper divisors (246151209).

444997959 is a wasteful number, since it uses less digits than its factorization.

444997959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175 (or 4168 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 60.

The square root of 444997959 is about 21094.9747333340. The cubic root of 444997959 is about 763.4595049390.

The spelling of 444997959 in words is "four hundred forty-four million, nine hundred ninety-seven thousand, nine hundred fifty-nine".