29971370 has 32 divisors (see below), whose sum is σ = 63383040. Its totient is φ = 10059840.

The previous prime is 29971363. The next prime is 29971393. The reversal of 29971370 is 7317992.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9050 + ... + 11909.

It is an arithmetic number, because the mean of its divisors is an integer number (1980720).

Almost surely, 2^29971370 is an apocalyptic number.

29971370 is an abundant number, since it is smaller than the sum of its proper divisors (33411670).

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

29971370 is a wasteful number, since it uses less digits than its factorization.

29971370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20990.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 29971370 is about 5474.6114017344. The cubic root of 29971370 is about 310.6243746167.

The spelling of 29971370 in words is "twenty-nine million, nine hundred seventy-one thousand, three hundred seventy".