244440426446 has 4 divisors (see below), whose sum is σ = 366660639672. Its totient is φ = 122220213222.

The previous prime is 244440426443. The next prime is 244440426473. The reversal of 244440426446 is 644624044442.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×244440426446² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 244440426397 and 244440426406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244440426443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110106610 + ... + 61110106613.

It is an arithmetic number, because the mean of its divisors is an integer number (91665159918).

Almost surely, 2^244440426446 is an apocalyptic number.

244440426446 is a deficient number, since it is larger than the sum of its proper divisors (122220213226).

244440426446 is a wasteful number, since it uses less digits than its factorization.

244440426446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122220213225.

The product of its (nonzero) digits is 2359296, while the sum is 44.

The spelling of 244440426446 in words is "two hundred forty-four billion, four hundred forty million, four hundred twenty-six thousand, four hundred forty-six".