442472248709 has 4 divisors (see below), whose sum is σ = 442473824160. Its totient is φ = 442470673260.

The previous prime is 442472248667. The next prime is 442472248717. The reversal of 442472248709 is 907842274244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442472248709 - 2²⁸ = 442203813253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442472248759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239057 + ... + 970614.

It is an arithmetic number, because the mean of its divisors is an integer number (110618456040).

Almost surely, 2^442472248709 is an apocalyptic number.

It is an amenable number.

442472248709 is a deficient number, since it is larger than the sum of its proper divisors (1575451).

442472248709 is a wasteful number, since it uses less digits than its factorization.

442472248709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575450.

The product of its (nonzero) digits is 7225344, while the sum is 53.

The spelling of 442472248709 in words is "four hundred forty-two billion, four hundred seventy-two million, two hundred forty-eight thousand, seven hundred nine".