42303252644 has 24 divisors (see below), whose sum is σ = 74216801400. Its totient is φ = 21098499840.

The previous prime is 42303252611. The next prime is 42303252647. The reversal of 42303252644 is 44625230324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6160680100 + 36142572544 = 78490^2 + 190112^2 .

It is not an unprimeable number, because it can be changed into a prime (42303252647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639562 + ... + 4648670.

It is an arithmetic number, because the mean of its divisors is an integer number (3092366725).

Almost surely, 2^42303252644 is an apocalyptic number.

It is an amenable number.

42303252644 is a deficient number, since it is larger than the sum of its proper divisors (31913548756).

42303252644 is a wasteful number, since it uses less digits than its factorization.

42303252644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11903 (or 11901 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 42303252644 its reverse (44625230324), we get a palindrome (86928482968).

The spelling of 42303252644 in words is "forty-two billion, three hundred three million, two hundred fifty-two thousand, six hundred forty-four".