444776772 has 48 divisors (see below), whose sum is σ = 1138761792. Its totient is φ = 133994880.

The previous prime is 444776767. The next prime is 444776777. The reversal of 444776772 is 277677444.

It is an interprime number because it is at equal distance from previous prime (444776767) and next prime (444776777).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (444776777) 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, 13098 + ... + 32574.

It is an arithmetic number, because the mean of its divisors is an integer number (23724204).

Almost surely, 2^444776772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444776772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569380896).

444776772 is an abundant number, since it is smaller than the sum of its proper divisors (693985020).

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

444776772 is a wasteful number, since it uses less digits than its factorization.

444776772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19668 (or 19666 counting only the distinct ones).

The product of its digits is 1843968, while the sum is 48.

The square root of 444776772 is about 21089.7314349899. The cubic root of 444776772 is about 763.3329910226.

The spelling of 444776772 in words is "four hundred forty-four million, seven hundred seventy-six thousand, seven hundred seventy-two".