123690038 has 16 divisors (see below), whose sum is σ = 200580720. Its totient is φ = 57005856.

The previous prime is 123690037. The next prime is 123690103. The reversal of 123690038 is 830096321.

It is a junction number, because it is equal to n+sod(n) for n = 123689986 and 123690013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123690037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42581 + ... + 45392.

It is an arithmetic number, because the mean of its divisors is an integer number (12536295).

Almost surely, 2^123690038 is an apocalyptic number.

123690038 is a deficient number, since it is larger than the sum of its proper divisors (76890682).

123690038 is a wasteful number, since it uses less digits than its factorization.

123690038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88031.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 123690038 is about 11121.6023126166. The cubic root of 123690038 is about 498.2472468927.

The spelling of 123690038 in words is "one hundred twenty-three million, six hundred ninety thousand, thirty-eight".