29439481 has 2 divisors, whose sum is σ = 29439482. Its totient is φ = 29439480.

The previous prime is 29439419. The next prime is 29439497. The reversal of 29439481 is 18493492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 10949481 = 4300^2 + 3309^2 .

It is a cyclic number.

It is not a de Polignac number, because 29439481 - 2¹³ = 29431289 is a prime.

It is a super-2 number, since 2×29439481² = 1733366083098722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29439281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14719740 + 14719741.

It is an arithmetic number, because the mean of its divisors is an integer number (14719741).

Almost surely, 2^29439481 is an apocalyptic number.

It is an amenable number.

29439481 is a deficient number, since it is larger than the sum of its proper divisors (1).

29439481 is an equidigital number, since it uses as much as digits as its factorization.

29439481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 29439481 is about 5425.8161598049. The cubic root of 29439481 is about 308.7758906753.

The spelling of 29439481 in words is "twenty-nine million, four hundred thirty-nine thousand, four hundred eighty-one".