29981338 has 8 divisors (see below), whose sum is σ = 44997300. Its totient is φ = 14982240.

The previous prime is 29981323. The next prime is 29981339. The reversal of 29981338 is 83318992.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24631369 + 5349969 = 4963^2 + 2313^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 29981294 and 29981303.

It is not an unprimeable number, because it can be changed into a prime (29981339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158 + ... + 8038.

Almost surely, 2^29981338 is an apocalyptic number.

29981338 is a deficient number, since it is larger than the sum of its proper divisors (15015962).

29981338 is a wasteful number, since it uses less digits than its factorization.

29981338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8432.

The product of its digits is 93312, while the sum is 43.

The square root of 29981338 is about 5475.5217103030. The cubic root of 29981338 is about 310.6588070386.

The spelling of 29981338 in words is "twenty-nine million, nine hundred eighty-one thousand, three hundred thirty-eight".