238149998 has 8 divisors (see below), whose sum is σ = 368748480. Its totient is φ = 115233840.

The previous prime is 238149997. The next prime is 238150051. The reversal of 238149998 is 899941832.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238149997) 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, 1920503 + ... + 1920626.

It is an arithmetic number, because the mean of its divisors is an integer number (46093560).

Almost surely, 2^238149998 is an apocalyptic number.

238149998 is a deficient number, since it is larger than the sum of its proper divisors (130598482).

238149998 is a wasteful number, since it uses less digits than its factorization.

238149998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841162.

The product of its digits is 1119744, while the sum is 53.

The square root of 238149998 is about 15432.1093179124. The cubic root of 238149998 is about 619.8456067172.

The spelling of 238149998 in words is "two hundred thirty-eight million, one hundred forty-nine thousand, nine hundred ninety-eight".