29238121 has 8 divisors (see below), whose sum is σ = 32112000. Its totient is φ = 26400240.

The previous prime is 29238107. The next prime is 29238127. The reversal of 29238121 is 12183292.

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

It is a cyclic number.

It is not a de Polignac number, because 29238121 - 2⁷ = 29237993 is a prime.

It is a super-3 number, since 3×29238121³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29238121.

It is not an unprimeable number, because it can be changed into a prime (29238127) 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, 7281 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (4014000).

Almost surely, 2^29238121 is an apocalyptic number.

It is an amenable number.

29238121 is a deficient number, since it is larger than the sum of its proper divisors (2873879).

29238121 is a wasteful number, since it uses less digits than its factorization.

29238121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17999.

The product of its digits is 1728, while the sum is 28.

The square root of 29238121 is about 5407.2285877333. The cubic root of 29238121 is about 308.0702916254.

The spelling of 29238121 in words is "twenty-nine million, two hundred thirty-eight thousand, one hundred twenty-one".