238497398 has 4 divisors (see below), whose sum is σ = 357746100. Its totient is φ = 119248698.

The previous prime is 238497397. The next prime is 238497433. The reversal of 238497398 is 893794832.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238497397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59624348 + ... + 59624351.

It is an arithmetic number, because the mean of its divisors is an integer number (89436525).

Almost surely, 2^238497398 is an apocalyptic number.

238497398 is a deficient number, since it is larger than the sum of its proper divisors (119248702).

238497398 is a wasteful number, since it uses less digits than its factorization.

238497398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119248701.

The product of its digits is 2612736, while the sum is 53.

The square root of 238497398 is about 15443.3609683903. The cubic root of 238497398 is about 620.1468590714.

The spelling of 238497398 in words is "two hundred thirty-eight million, four hundred ninety-seven thousand, three hundred ninety-eight".