29449981 has 8 divisors (see below), whose sum is σ = 33818400. Its totient is φ = 25363440.

The previous prime is 29449957. The next prime is 29450009. The reversal of 29449981 is 18994492.

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 29449981 - 2⁷ = 29449853 is a prime.

It is a super-2 number, since 2×29449981² = 1734602761800722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29449921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70246 + ... + 70663.

It is an arithmetic number, because the mean of its divisors is an integer number (4227300).

Almost surely, 2^29449981 is an apocalyptic number.

It is an amenable number.

29449981 is a deficient number, since it is larger than the sum of its proper divisors (4368419).

29449981 is a wasteful number, since it uses less digits than its factorization.

29449981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140939.

The product of its digits is 186624, while the sum is 46.

The square root of 29449981 is about 5426.7836699098. The cubic root of 29449981 is about 308.8125960492.

The spelling of 29449981 in words is "twenty-nine million, four hundred forty-nine thousand, nine hundred eighty-one".