423086138 has 8 divisors (see below), whose sum is σ = 634749780. Its totient is φ = 211502880.

The previous prime is 423086137. The next prime is 423086141. The reversal of 423086138 is 831680324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 391129729 + 31956409 = 19777^2 + 5653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 423086098 and 423086107.

It is not an unprimeable number, because it can be changed into a prime (423086137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4523 + ... + 29438.

Almost surely, 2^423086138 is an apocalyptic number.

423086138 is a deficient number, since it is larger than the sum of its proper divisors (211663642).

423086138 is a wasteful number, since it uses less digits than its factorization.

423086138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40192.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 423086138 is about 20569.0577810458. The cubic root of 423086138 is about 750.7170256878.

The spelling of 423086138 in words is "four hundred twenty-three million, eighty-six thousand, one hundred thirty-eight".