2447997442 has 8 divisors (see below), whose sum is σ = 4005814032. Its totient is φ = 1112726100.

The previous prime is 2447997371. The next prime is 2447997469.

2447997442 is nontrivially palindromic in base 10.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2447997442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55636284 + ... + 55636327.

It is an arithmetic number, because the mean of its divisors is an integer number (500726754).

Almost surely, 2^2447997442 is an apocalyptic number.

2447997442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2447997442 is a deficient number, since it is larger than the sum of its proper divisors (1557816590).

2447997442 is a wasteful number, since it uses less digits than its factorization.

2447997442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111272624.

The product of its digits is 4064256, while the sum is 52.

The square root of 2447997442 is about 49477.2416571498. The cubic root of 2447997442 is about 1347.7323507300.

The spelling of 2447997442 in words is "two billion, four hundred forty-seven million, nine hundred ninety-seven thousand, four hundred forty-two".