29131242 has 16 divisors (see below), whose sum is σ = 66585792. Its totient is φ = 8323200.

The previous prime is 29131187. The next prime is 29131243. The reversal of 29131242 is 24213192.

It is not an unprimeable number, because it can be changed into a prime (29131243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346759 + ... + 346842.

It is an arithmetic number, because the mean of its divisors is an integer number (4161612).

Almost surely, 2^29131242 is an apocalyptic number.

29131242 is an abundant number, since it is smaller than the sum of its proper divisors (37454550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29131242 is a wasteful number, since it uses less digits than its factorization.

29131242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693613.

The product of its digits is 864, while the sum is 24.

The square root of 29131242 is about 5397.3365653811. The cubic root of 29131242 is about 307.6944529882.

The spelling of 29131242 in words is "twenty-nine million, one hundred thirty-one thousand, two hundred forty-two".