238190947 has 8 divisors (see below), whose sum is σ = 239934816. Its totient is φ = 236453952.

The previous prime is 238190923. The next prime is 238190951. The reversal of 238190947 is 749091832.

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

It is a cyclic number.

It is not a de Polignac number, because 238190947 - 2⁷ = 238190819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238190917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81943 + ... + 84799.

It is an arithmetic number, because the mean of its divisors is an integer number (29991852).

Almost surely, 2^238190947 is an apocalyptic number.

238190947 is a deficient number, since it is larger than the sum of its proper divisors (1743869).

238190947 is a wasteful number, since it uses less digits than its factorization.

238190947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 238190947 is about 15433.4360075778. The cubic root of 238190947 is about 619.8811313912.

The spelling of 238190947 in words is "two hundred thirty-eight million, one hundred ninety thousand, nine hundred forty-seven".