7442442447 has 8 divisors (see below), whose sum is σ = 10825370880. Its totient is φ = 4510571160.

The previous prime is 7442442439. The next prime is 7442442457.

7442442447 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 7442442447 - 2³ = 7442442439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7442442399 and 7442442408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7442442457) 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, 112764247 + ... + 112764312.

It is an arithmetic number, because the mean of its divisors is an integer number (1353171360).

Almost surely, 2^7442442447 is an apocalyptic number.

7442442447 is a deficient number, since it is larger than the sum of its proper divisors (3382928433).

7442442447 is a wasteful number, since it uses less digits than its factorization.

7442442447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225528573.

The product of its digits is 802816, while the sum is 42.

The square root of 7442442447 is about 86269.5916705301. The cubic root of 7442442447 is about 1952.4136185357.

The spelling of 7442442447 in words is "seven billion, four hundred forty-two million, four hundred forty-two thousand, four hundred forty-seven".