29082981 has 24 divisors (see below), whose sum is σ = 40800640. Its totient is φ = 18420480.

The previous prime is 29082979. The next prime is 29083001. The reversal of 29082981 is 18928092.

It is not a de Polignac number, because 29082981 - 2¹ = 29082979 is a prime.

It is a super-2 number, since 2×29082981² = 1691639567692722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29082931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368100 + ... + 368178.

Almost surely, 2^29082981 is an apocalyptic number.

It is an amenable number.

29082981 is a deficient number, since it is larger than the sum of its proper divisors (11717659).

29082981 is an equidigital number, since it uses as much as digits as its factorization.

29082981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 29082981 is about 5392.8638959277. The cubic root of 29082981 is about 307.5244425015.

The spelling of 29082981 in words is "twenty-nine million, eighty-two thousand, nine hundred eighty-one".