538422444 has 48 divisors (see below), whose sum is σ = 1595328000. Its totient is φ = 153834768.

The previous prime is 538422421. The next prime is 538422449. The reversal of 538422444 is 444224835.

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 = 538422399 and 538422408.

It is not an unprimeable number, because it can be changed into a prime (538422449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355344 + ... + 356855.

It is an arithmetic number, because the mean of its divisors is an integer number (33236000).

Almost surely, 2^538422444 is an apocalyptic number.

538422444 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

538422444 is an abundant number, since it is smaller than the sum of its proper divisors (1056905556).

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

538422444 is a wasteful number, since it uses less digits than its factorization.

538422444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712219 (or 712211 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

The square root of 538422444 is about 23203.9316496149. The cubic root of 538422444 is about 813.5315215466.

The spelling of 538422444 in words is "five hundred thirty-eight million, four hundred twenty-two thousand, four hundred forty-four".