42022264644 has 96 divisors (see below), whose sum is σ = 115204346880. Its totient is φ = 13224902400.

The previous prime is 42022264643. The next prime is 42022264651. The reversal of 42022264644 is 44646222024.

42022264644 is a `hidden beast` number, since 4 + 2 + 0 + 2 + 2 + 2 + 6 + 4 + 644 = 666.

42022264644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42022264599 and 42022264608.

It is not an unprimeable number, because it can be changed into a prime (42022264643) 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, 15799 + ... + 290334.

It is an arithmetic number, because the mean of its divisors is an integer number (1200045280).

Almost surely, 2^42022264644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42022264644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57602173440).

42022264644 is an abundant number, since it is smaller than the sum of its proper divisors (73182082236).

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

42022264644 is a wasteful number, since it uses less digits than its factorization.

42022264644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306218 (or 306210 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 42022264644 its reverse (44646222024), we get a palindrome (86668486668).

The spelling of 42022264644 in words is "forty-two billion, twenty-two million, two hundred sixty-four thousand, six hundred forty-four".