29989312 has 28 divisors (see below), whose sum is σ = 59684920. Its totient is φ = 14950656.

The previous prime is 29989303. The next prime is 29989313. The reversal of 29989312 is 21398992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29989313) 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, 39238 + ... + 39994.

Almost surely, 2^29989312 is an apocalyptic number.

It is an amenable number.

29989312 is a deficient number, since it is larger than the sum of its proper divisors (29695608).

29989312 is an equidigital number, since it uses as much as digits as its factorization.

29989312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1378 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 29989312 is about 5476.2498116868. The cubic root of 29989312 is about 310.6863461002.

The spelling of 29989312 in words is "twenty-nine million, nine hundred eighty-nine thousand, three hundred twelve".