29989012 has 6 divisors (see below), whose sum is σ = 52480778. Its totient is φ = 14994504.

The previous prime is 29989009. The next prime is 29989013. The reversal of 29989012 is 21098992.

It can be written as a sum of positive squares in only one way, i.e., 29964676 + 24336 = 5474^2 + 156^2 .

It is a super-2 number, since 2×29989012² = 1798681681472288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29989013) 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 as a sum of consecutive naturals, namely, 3748623 + ... + 3748630.

Almost surely, 2^29989012 is an apocalyptic number.

It is an amenable number.

29989012 is a deficient number, since it is larger than the sum of its proper divisors (22491766).

29989012 is a wasteful number, since it uses less digits than its factorization.

29989012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7497257 (or 7497255 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 29989012 is about 5476.2224206108. Note that the first 3 decimals coincide. The cubic root of 29989012 is about 310.6853101065.

The spelling of 29989012 in words is "twenty-nine million, nine hundred eighty-nine thousand, twelve".