29640121 has 8 divisors (see below), whose sum is σ = 33918080. Its totient is φ = 25373088.

The previous prime is 29640119. The next prime is 29640131. The reversal of 29640121 is 12104692.

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 29640121 - 2¹ = 29640119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29640131) 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, 4300 + ... + 8818.

It is an arithmetic number, because the mean of its divisors is an integer number (4239760).

Almost surely, 2^29640121 is an apocalyptic number.

It is an amenable number.

29640121 is a deficient number, since it is larger than the sum of its proper divisors (4277959).

29640121 is an equidigital number, since it uses as much as digits as its factorization.

29640121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 29640121 is about 5444.2741481303. The cubic root of 29640121 is about 309.4757737350.

The spelling of 29640121 in words is "twenty-nine million, six hundred forty thousand, one hundred twenty-one".