238090232391 has 48 divisors (see below), whose sum is σ = 352708147680. Its totient is φ = 142742476800.

The previous prime is 238090232381. The next prime is 238090232417. The reversal of 238090232391 is 193232090832.

It is not a de Polignac number, because 238090232391 - 2⁶ = 238090232327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238090232351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22185915 + ... + 22196643.

It is an arithmetic number, because the mean of its divisors is an integer number (7348086410).

Almost surely, 2^238090232391 is an apocalyptic number.

238090232391 is a deficient number, since it is larger than the sum of its proper divisors (114617915289).

238090232391 is a wasteful number, since it uses less digits than its factorization.

238090232391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11408 (or 11397 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 238090232391 in words is "two hundred thirty-eight billion, ninety million, two hundred thirty-two thousand, three hundred ninety-one".