8308690438 has 4 divisors (see below), whose sum is σ = 12463035660. Its totient is φ = 4154345218.

The previous prime is 8308690433. The next prime is 8308690447. The reversal of 8308690438 is 8340968038.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 8308690391 and 8308690400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8308690433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077172608 + ... + 2077172611.

It is an arithmetic number, because the mean of its divisors is an integer number (3115758915).

Almost surely, 2^8308690438 is an apocalyptic number.

8308690438 is a deficient number, since it is larger than the sum of its proper divisors (4154345222).

8308690438 is a wasteful number, since it uses less digits than its factorization.

8308690438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154345221.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 8308690438 is about 91152.0182881323. The cubic root of 8308690438 is about 2025.4002511580.

The spelling of 8308690438 in words is "eight billion, three hundred eight million, six hundred ninety thousand, four hundred thirty-eight".