29661290 has 8 divisors (see below), whose sum is σ = 53390340. Its totient is φ = 11864512.

The previous prime is 29661253. The next prime is 29661293. The reversal of 29661290 is 9216692.

It can be written as a sum of positive squares in 2 ways, for example, as 24790441 + 4870849 = 4979^2 + 2207^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 29661290.

It is not an unprimeable number, because it can be changed into a prime (29661293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483055 + ... + 1483074.

Almost surely, 2^29661290 is an apocalyptic number.

29661290 is a deficient number, since it is larger than the sum of its proper divisors (23729050).

29661290 is a wasteful number, since it uses less digits than its factorization.

29661290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966136.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 29661290 is about 5446.2179537731. The cubic root of 29661290 is about 309.5494321571.

The spelling of 29661290 in words is "twenty-nine million, six hundred sixty-one thousand, two hundred ninety".