238197261490 has 8 divisors (see below), whose sum is σ = 428755070700. Its totient is φ = 95278904592.

The previous prime is 238197261481. The next prime is 238197261503. The reversal of 238197261490 is 94162791832.

It can be written as a sum of positive squares in 2 ways, for example, as 237830807041 + 366454449 = 487679^2 + 19143^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11909863065 + ... + 11909863084.

Almost surely, 2^238197261490 is an apocalyptic number.

238197261490 is a deficient number, since it is larger than the sum of its proper divisors (190557809210).

238197261490 is a wasteful number, since it uses less digits than its factorization.

238197261490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23819726156.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 238197261490 in words is "two hundred thirty-eight billion, one hundred ninety-seven million, two hundred sixty-one thousand, four hundred ninety".