29256681 has 8 divisors (see below), whose sum is σ = 39057760. Its totient is φ = 19480032.

The previous prime is 29256673. The next prime is 29256691. The reversal of 29256681 is 18665292.

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

It is not a de Polignac number, because 29256681 - 2³ = 29256673 is a prime.

It is a super-2 number, since 2×29256681² = 1711906766271522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29256671) 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, 3100 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (4882220).

Almost surely, 2^29256681 is an apocalyptic number.

It is an amenable number.

29256681 is a deficient number, since it is larger than the sum of its proper divisors (9801079).

29256681 is a wasteful number, since it uses less digits than its factorization.

29256681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215.

The product of its digits is 51840, while the sum is 39.

The square root of 29256681 is about 5408.9445365986. The cubic root of 29256681 is about 308.1354642492.

The spelling of 29256681 in words is "twenty-nine million, two hundred fifty-six thousand, six hundred eighty-one".