532686638 has 16 divisors (see below), whose sum is σ = 875294640. Its totient is φ = 241123200.

The previous prime is 532686631. The next prime is 532686643. The reversal of 532686638 is 836686235.

It is a junction number, because it is equal to n+sod(n) for n = 532686592 and 532686601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532686631) 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, 44933 + ... + 55536.

It is an arithmetic number, because the mean of its divisors is an integer number (54705915).

Almost surely, 2^532686638 is an apocalyptic number.

532686638 is a deficient number, since it is larger than the sum of its proper divisors (342608002).

532686638 is a wasteful number, since it uses less digits than its factorization.

532686638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100723.

The product of its digits is 1244160, while the sum is 47.

The square root of 532686638 is about 23080.0051559786. The cubic root of 532686638 is about 810.6323558672.

The spelling of 532686638 in words is "five hundred thirty-two million, six hundred eighty-six thousand, six hundred thirty-eight".