38923009138242 has 32 divisors (see below), whose sum is σ = 86905507527360. Its totient is φ = 12912846629760.

The previous prime is 38923009138241. The next prime is 38923009138253. The reversal of 38923009138242 is 24283190032983.

38923009138242 is a `hidden beast` number, since 3 + 8 + 9 + 2 + 300 + 91 + 3 + 8 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (38923009138241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708037103 + ... + 1708059890.

It is an arithmetic number, because the mean of its divisors is an integer number (2715797110230).

Almost surely, 2^{38923009138242} is an apocalyptic number.

38923009138242 is an abundant number, since it is smaller than the sum of its proper divisors (47982498389118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38923009138242 is a wasteful number, since it uses less digits than its factorization.

38923009138242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416097215 (or 3416097209 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 38923009138242 in words is "thirty-eight trillion, nine hundred twenty-three billion, nine million, one hundred thirty-eight thousand, two hundred forty-two".