29801438 has 4 divisors (see below), whose sum is σ = 44702160. Its totient is φ = 14900718.

The previous prime is 29801437. The next prime is 29801449. The reversal of 29801438 is 83410892.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29801398 and 29801407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29801437) 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 as a sum of consecutive naturals, namely, 7450358 + ... + 7450361.

It is an arithmetic number, because the mean of its divisors is an integer number (11175540).

Almost surely, 2^29801438 is an apocalyptic number.

29801438 is a deficient number, since it is larger than the sum of its proper divisors (14900722).

29801438 is a wasteful number, since it uses less digits than its factorization.

29801438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14900721.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 29801438 is about 5459.0693346027. The cubic root of 29801438 is about 310.0362011140.

The spelling of 29801438 in words is "twenty-nine million, eight hundred one thousand, four hundred thirty-eight".