29842381 has 2 divisors, whose sum is σ = 29842382. Its totient is φ = 29842380.

The previous prime is 29842349. The next prime is 29842411. The reversal of 29842381 is 18324892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24413481 + 5428900 = 4941^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 29842381 - 2⁵ = 29842349 is a prime.

It is a super-2 number, since 2×29842381² = 1781135407498322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29842381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29846381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14921190 + 14921191.

It is an arithmetic number, because the mean of its divisors is an integer number (14921191).

Almost surely, 2^29842381 is an apocalyptic number.

It is an amenable number.

29842381 is a deficient number, since it is larger than the sum of its proper divisors (1).

29842381 is an equidigital number, since it uses as much as digits as its factorization.

29842381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 29842381 is about 5462.8180456610. The cubic root of 29842381 is about 310.1781182417.

The spelling of 29842381 in words is "twenty-nine million, eight hundred forty-two thousand, three hundred eighty-one".