923906438 has 24 divisors (see below), whose sum is σ = 1715049648. Its totient is φ = 365500512.

The previous prime is 923906437. The next prime is 923906443. The reversal of 923906438 is 834609329.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923906437) 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, 192881 + ... + 197612.

It is an arithmetic number, because the mean of its divisors is an integer number (71460402).

Almost surely, 2^923906438 is an apocalyptic number.

923906438 is a deficient number, since it is larger than the sum of its proper divisors (791143210).

923906438 is a wasteful number, since it uses less digits than its factorization.

923906438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390528 (or 390515 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 923906438 is about 30395.8292862689. The cubic root of 923906438 is about 973.9634613921.

The spelling of 923906438 in words is "nine hundred twenty-three million, nine hundred six thousand, four hundred thirty-eight".