444507947 has 8 divisors (see below), whose sum is σ = 486815280. Its totient is φ = 403359840.

The previous prime is 444507941. The next prime is 444507953. The reversal of 444507947 is 749705444.

It is an interprime number because it is at equal distance from previous prime (444507941) and next prime (444507953).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444507947 - 2¹⁴ = 444491563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444507898 and 444507907.

It is not an unprimeable number, because it can be changed into a prime (444507941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289004 + ... + 290537.

It is an arithmetic number, because the mean of its divisors is an integer number (60851910).

Almost surely, 2^444507947 is an apocalyptic number.

444507947 is a deficient number, since it is larger than the sum of its proper divisors (42307333).

444507947 is a wasteful number, since it uses less digits than its factorization.

444507947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579613.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 444507947 is about 21083.3571093410. The cubic root of 444507947 is about 763.1791727779.

The spelling of 444507947 in words is "four hundred forty-four million, five hundred seven thousand, nine hundred forty-seven".