29438231 has 2 divisors, whose sum is σ = 29438232. Its totient is φ = 29438230.

The previous prime is 29438221. The next prime is 29438249. The reversal of 29438231 is 13283492.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29438231 - 2¹⁸ = 29176087 is a prime.

It is a super-2 number, since 2×29438231² = 1733218888818722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29438221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14719115 + 14719116.

It is an arithmetic number, because the mean of its divisors is an integer number (14719116).

Almost surely, 2^29438231 is an apocalyptic number.

29438231 is a deficient number, since it is larger than the sum of its proper divisors (1).

29438231 is an equidigital number, since it uses as much as digits as its factorization.

29438231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 29438231 is about 5425.7009685385. The cubic root of 29438231 is about 308.7715204066.

The spelling of 29438231 in words is "twenty-nine million, four hundred thirty-eight thousand, two hundred thirty-one".