538446438 has 24 divisors (see below), whose sum is σ = 1184049048. Its totient is φ = 176802912.

The previous prime is 538446431. The next prime is 538446479. The reversal of 538446438 is 834644835.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 538446393 and 538446402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538446431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222031 + ... + 224442.

It is an arithmetic number, because the mean of its divisors is an integer number (49335377).

Almost surely, 2^538446438 is an apocalyptic number.

538446438 is an abundant number, since it is smaller than the sum of its proper divisors (645602610).

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

538446438 is a wasteful number, since it uses less digits than its factorization.

538446438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446548 (or 446545 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 538446438 is about 23204.4486683050. The cubic root of 538446438 is about 813.5436059768.

The spelling of 538446438 in words is "five hundred thirty-eight million, four hundred forty-six thousand, four hundred thirty-eight".