29945812 has 24 divisors (see below), whose sum is σ = 57238272. Its totient is φ = 13624800.

The previous prime is 29945809. The next prime is 29945813. The reversal of 29945812 is 21854992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29945813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364 + ... + 7747.

It is an arithmetic number, because the mean of its divisors is an integer number (2384928).

Almost surely, 2^29945812 is an apocalyptic number.

It is an amenable number.

29945812 is a deficient number, since it is larger than the sum of its proper divisors (27292460).

29945812 is a wasteful number, since it uses less digits than its factorization.

29945812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199 (or 8197 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 29945812 is about 5472.2766742920. The cubic root of 29945812 is about 310.5360548249.

The spelling of 29945812 in words is "twenty-nine million, nine hundred forty-five thousand, eight hundred twelve".