526938138 has 24 divisors (see below), whose sum is σ = 1142313588. Its totient is φ = 175551552.

The previous prime is 526938131. The next prime is 526938143. The reversal of 526938138 is 831839625.

It is a happy number.

526938138 is a `hidden beast` number, since 5 + 269 + 381 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 407757249 + 119180889 = 20193^2 + 10917^2 .

It is a junction number, because it is equal to n+sod(n) for n = 526938093 and 526938102.

It is not an unprimeable number, because it can be changed into a prime (526938131) 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, 31956 + ... + 45552.

Almost surely, 2^526938138 is an apocalyptic number.

526938138 is an abundant number, since it is smaller than the sum of its proper divisors (615375450).

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

526938138 is a wasteful number, since it uses less digits than its factorization.

526938138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15758 (or 15755 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 526938138 is about 22955.1331514326. The cubic root of 526938138 is about 807.7058173648.

It can be divided in two parts, 526938 and 138, that added together give a square (527076 = 726²).

The spelling of 526938138 in words is "five hundred twenty-six million, nine hundred thirty-eight thousand, one hundred thirty-eight".