29990312 has 32 divisors (see below), whose sum is σ = 64955520. Its totient is φ = 12829440.

The previous prime is 29990293. The next prime is 29990327. The reversal of 29990312 is 21309992.

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 7 ways as a sum of consecutive naturals, for example, 8528 + ... + 11519.

It is an arithmetic number, because the mean of its divisors is an integer number (2029860).

Almost surely, 2^29990312 is an apocalyptic number.

29990312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

29990312 is an abundant number, since it is smaller than the sum of its proper divisors (34965208).

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

29990312 is a wasteful number, since it uses less digits than its factorization.

29990312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20081 (or 20077 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 29990312 is about 5476.3411142842. The cubic root of 29990312 is about 310.6897993626.

The spelling of 29990312 in words is "twenty-nine million, nine hundred ninety thousand, three hundred twelve".