42444454360 has 128 divisors (see below), whose sum is σ = 119146982400. Its totient is φ = 13220328960.

The previous prime is 42444454321. The next prime is 42444454361. The reversal of 42444454360 is 6345444424.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444454361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5506269 + ... + 5513971.

It is an arithmetic number, because the mean of its divisors is an integer number (930835800).

Almost surely, 2^42444454360 is an apocalyptic number.

42444454360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42444454360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59573491200).

42444454360 is an abundant number, since it is smaller than the sum of its proper divisors (76702528040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42444454360 is a wasteful number, since it uses less digits than its factorization.

42444454360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9521 (or 9517 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 40.

Adding to 42444454360 its reverse (6345444424), we get a palindrome (48789898784).

The spelling of 42444454360 in words is "forty-two billion, four hundred forty-four million, four hundred fifty-four thousand, three hundred sixty".