29040409 has 2 divisors, whose sum is σ = 29040410. Its totient is φ = 29040408.

The previous prime is 29040383. The next prime is 29040443. The reversal of 29040409 is 90404092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16281225 + 12759184 = 4035^2 + 3572^2 .

It is a cyclic number.

It is not a de Polignac number, because 29040409 - 2⁵ = 29040377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29040509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14520204 + 14520205.

It is an arithmetic number, because the mean of its divisors is an integer number (14520205).

Almost surely, 2^29040409 is an apocalyptic number.

It is an amenable number.

29040409 is a deficient number, since it is larger than the sum of its proper divisors (1).

29040409 is an equidigital number, since it uses as much as digits as its factorization.

29040409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 29040409 is about 5388.9153825236. The cubic root of 29040409 is about 307.3743166277.

The spelling of 29040409 in words is "twenty-nine million, forty thousand, four hundred nine".