538381652 has 6 divisors (see below), whose sum is σ = 942167898. Its totient is φ = 269190824.

The previous prime is 538381633. The next prime is 538381661. The reversal of 538381652 is 256183835.

It can be written as a sum of positive squares in only one way, i.e., 283787716 + 254593936 = 16846^2 + 15956^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67297703 + ... + 67297710.

It is an arithmetic number, because the mean of its divisors is an integer number (157027983).

Almost surely, 2^538381652 is an apocalyptic number.

It is an amenable number.

538381652 is a deficient number, since it is larger than the sum of its proper divisors (403786246).

538381652 is a wasteful number, since it uses less digits than its factorization.

538381652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134595417 (or 134595415 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 538381652 is about 23203.0526439949. The cubic root of 538381652 is about 813.5109760831.

The spelling of 538381652 in words is "five hundred thirty-eight million, three hundred eighty-one thousand, six hundred fifty-two".