29402081 has 2 divisors, whose sum is σ = 29402082. Its totient is φ = 29402080.

The previous prime is 29402077. The next prime is 29402083. The reversal of 29402081 is 18020492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24601600 + 4800481 = 4960^2 + 2191^2 .

It is a cyclic number.

It is not a de Polignac number, because 29402081 - 2² = 29402077 is a prime.

It is a super-3 number, since 3×29402081³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 29402083, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29402081.

It is not a weakly prime, because it can be changed into another prime (29402083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14701040 + 14701041.

It is an arithmetic number, because the mean of its divisors is an integer number (14701041).

Almost surely, 2^29402081 is an apocalyptic number.

It is an amenable number.

29402081 is a deficient number, since it is larger than the sum of its proper divisors (1).

29402081 is an equidigital number, since it uses as much as digits as its factorization.

29402081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 29402081 is about 5422.3685783982. The cubic root of 29402081 is about 308.6450786764.

The spelling of 29402081 in words is "twenty-nine million, four hundred two thousand, eighty-one".