238111892 has 12 divisors (see below), whose sum is σ = 417115860. Its totient is φ = 118935936.

The previous prime is 238111889. The next prime is 238111897. The reversal of 238111892 is 298111832.

238111892 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 99720196 + 138391696 = 9986^2 + 11764^2 .

It is a super-5 number, since 5×238111892⁵ (a number of 43 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238111897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25463 + ... + 33534.

It is an arithmetic number, because the mean of its divisors is an integer number (34759655).

Almost surely, 2^238111892 is an apocalyptic number.

It is an amenable number.

238111892 is a deficient number, since it is larger than the sum of its proper divisors (179003968).

238111892 is a wasteful number, since it uses less digits than its factorization.

238111892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60010 (or 60008 counting only the distinct ones).

The product of its digits is 6912, while the sum is 35.

The square root of 238111892 is about 15430.8746349648. The cubic root of 238111892 is about 619.8125447860.

The spelling of 238111892 in words is "two hundred thirty-eight million, one hundred eleven thousand, eight hundred ninety-two".