29905900 has 18 divisors (see below), whose sum is σ = 64896020. Its totient is φ = 11962320.

The previous prime is 29905891. The next prime is 29905901. The reversal of 29905900 is 950992.

It is not an unprimeable number, because it can be changed into a prime (29905901) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 149430 + ... + 149629.

Almost surely, 2^29905900 is an apocalyptic number.

29905900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29905900 is an abundant number, since it is smaller than the sum of its proper divisors (34990120).

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

29905900 is a wasteful number, since it uses less digits than its factorization.

29905900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299073 (or 299066 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 29905900 is about 5468.6287129407. The cubic root of 29905900 is about 310.3980319029.

The spelling of 29905900 in words is "twenty-nine million, nine hundred five thousand, nine hundred".