29138641 has 8 divisors (see below), whose sum is σ = 33442560. Its totient is φ = 24870048.

The previous prime is 29138639. The next prime is 29138651. The reversal of 29138641 is 14683192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29138641 - 2¹ = 29138639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29138597 and 29138606.

It is not an unprimeable number, because it can be changed into a prime (29138651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7036 + ... + 10381.

It is an arithmetic number, because the mean of its divisors is an integer number (4180320).

Almost surely, 2^29138641 is an apocalyptic number.

It is an amenable number.

29138641 is a deficient number, since it is larger than the sum of its proper divisors (4303919).

29138641 is a wasteful number, since it uses less digits than its factorization.

29138641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17663.

The product of its digits is 10368, while the sum is 34.

The square root of 29138641 is about 5398.0219525304. The cubic root of 29138641 is about 307.7205010656.

The spelling of 29138641 in words is "twenty-nine million, one hundred thirty-eight thousand, six hundred forty-one".