238049431 has 4 divisors (see below), whose sum is σ = 238896864. Its totient is φ = 237202000.

The previous prime is 238049363. The next prime is 238049443. The reversal of 238049431 is 134940832.

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

It is a cyclic number.

It is not a de Polignac number, because 238049431 - 2¹⁵ = 238016663 is a prime.

It is a super-2 number, since 2×238049431² = 113335063198847522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238049491) 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 3 ways as a sum of consecutive naturals, for example, 423295 + ... + 423856.

It is an arithmetic number, because the mean of its divisors is an integer number (59724216).

Almost surely, 2^238049431 is an apocalyptic number.

238049431 is a deficient number, since it is larger than the sum of its proper divisors (847433).

238049431 is an equidigital number, since it uses as much as digits as its factorization.

238049431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847432.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 238049431 is about 15428.8506052784. The cubic root of 238049431 is about 619.7583440813.

The spelling of 238049431 in words is "two hundred thirty-eight million, forty-nine thousand, four hundred thirty-one".