238429631 has 8 divisors (see below), whose sum is σ = 260713728. Its totient is φ = 216247000.

The previous prime is 238429627. The next prime is 238429699. The reversal of 238429631 is 136924832.

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 238429631 - 2² = 238429627 is a prime.

It is a super-2 number, since 2×238429631² = 113697377877592322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238429601) 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 in 7 ways as a sum of consecutive naturals, for example, 20405 + ... + 29886.

It is an arithmetic number, because the mean of its divisors is an integer number (32589216).

Almost surely, 2^238429631 is an apocalyptic number.

238429631 is a deficient number, since it is larger than the sum of its proper divisors (22284097).

238429631 is a wasteful number, since it uses less digits than its factorization.

238429631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50733.

The product of its digits is 62208, while the sum is 38.

The square root of 238429631 is about 15441.1667629101. The cubic root of 238429631 is about 620.0881170284.

The spelling of 238429631 in words is "two hundred thirty-eight million, four hundred twenty-nine thousand, six hundred thirty-one".