29943481 has 2 divisors, whose sum is σ = 29943482. Its totient is φ = 29943480.

The previous prime is 29943383. The next prime is 29943491. The reversal of 29943481 is 18434992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26101881 + 3841600 = 5109^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 29943481 - 2¹¹ = 29941433 is a prime.

It is a super-2 number, since 2×29943481² = 1793224108794722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29943491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14971740 + 14971741.

It is an arithmetic number, because the mean of its divisors is an integer number (14971741).

Almost surely, 2^29943481 is an apocalyptic number.

It is an amenable number.

29943481 is a deficient number, since it is larger than the sum of its proper divisors (1).

29943481 is an equidigital number, since it uses as much as digits as its factorization.

29943481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 29943481 is about 5472.0636874949. The cubic root of 29943481 is about 310.5279971781.

The spelling of 29943481 in words is "twenty-nine million, nine hundred forty-three thousand, four hundred eighty-one".