238091649 has 8 divisors (see below), whose sum is σ = 317580960. Its totient is φ = 158665056.

The previous prime is 238091629. The next prime is 238091663. The reversal of 238091649 is 946190832.

238091649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238091649 - 2⁷ = 238091521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238091649.

It is not an unprimeable number, because it can be changed into a prime (238091629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5959 + ... + 22620.

It is an arithmetic number, because the mean of its divisors is an integer number (39697620).

Almost surely, 2^238091649 is an apocalyptic number.

It is an amenable number.

238091649 is a deficient number, since it is larger than the sum of its proper divisors (79489311).

238091649 is a wasteful number, since it uses less digits than its factorization.

238091649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31359.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 238091649 is about 15430.2186957930. The cubic root of 238091649 is about 619.7949799053.

The spelling of 238091649 in words is "two hundred thirty-eight million, ninety-one thousand, six hundred forty-nine".