238177489 has 27 divisors (see below), whose sum is σ = 278235867. Its totient is φ = 203715600.

The previous prime is 238177447. The next prime is 238177517. The reversal of 238177489 is 984771832.

The square root of 238177489 is 15433.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7745089 + 230432400 = 2783^2 + 15180^2 .

It is not a de Polignac number, because 238177489 - 2⁹ = 238176977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238177409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3904519 + ... + 3904579.

Almost surely, 2^238177489 is an apocalyptic number.

238177489 is the 15433-rd square number.

238177489 is the 7717-th centered octagonal number.

It is an amenable number.

238177489 is a deficient number, since it is larger than the sum of its proper divisors (40058378).

238177489 is an equidigital number, since it uses as much as digits as its factorization.

238177489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 95 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The cubic root of 238177489 is about 619.8694565599.

Multiplying 238177489 by its sum of digits (49), we get a square (11670696961 = 108031²).

The spelling of 238177489 in words is "two hundred thirty-eight million, one hundred seventy-seven thousand, four hundred eighty-nine".