38940988234 has 4 divisors (see below), whose sum is σ = 58411482354. Its totient is φ = 19470494116.

The previous prime is 38940988223. The next prime is 38940988237. The reversal of 38940988234 is 43288904983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43288904983 = 257 ⋅168439319.

It can be written as a sum of positive squares in only one way, i.e., 19952975025 + 18988013209 = 141255^2 + 137797^2 .

It is not an unprimeable number, because it can be changed into a prime (38940988237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9735247057 + ... + 9735247060.

Almost surely, 2^38940988234 is an apocalyptic number.

38940988234 is a deficient number, since it is larger than the sum of its proper divisors (19470494120).

38940988234 is a wasteful number, since it uses less digits than its factorization.

38940988234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470494119.

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 38940988234 in words is "thirty-eight billion, nine hundred forty million, nine hundred eighty-eight thousand, two hundred thirty-four".