42144352444 has 24 divisors (see below), whose sum is σ = 73952940320. Its totient is φ = 21014982144.

The previous prime is 42144352441. The next prime is 42144352451. The reversal of 42144352444 is 44425344124.

It is a happy number.

It is a super-2 number, since 2×42144352444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144352441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8240032 + ... + 8245144.

Almost surely, 2^42144352444 is an apocalyptic number.

It is an amenable number.

42144352444 is a deficient number, since it is larger than the sum of its proper divisors (31808587876).

42144352444 is a wasteful number, since it uses less digits than its factorization.

42144352444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10309 (or 10307 counting only the distinct ones).

The product of its digits is 245760, while the sum is 37.

Adding to 42144352444 its reverse (44425344124), we get a palindrome (86569696568).

The spelling of 42144352444 in words is "forty-two billion, one hundred forty-four million, three hundred fifty-two thousand, four hundred forty-four".