29905868 has 6 divisors (see below), whose sum is σ = 52335276. Its totient is φ = 14952932.

The previous prime is 29905849. The next prime is 29905871. The reversal of 29905868 is 86850992.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3738230 + ... + 3738237.

It is an arithmetic number, because the mean of its divisors is an integer number (8722546).

Almost surely, 2^29905868 is an apocalyptic number.

It is an amenable number.

29905868 is a deficient number, since it is larger than the sum of its proper divisors (22429408).

29905868 is a wasteful number, since it uses less digits than its factorization.

29905868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7476471 (or 7476469 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 29905868 is about 5468.6257871608. The cubic root of 29905868 is about 310.3979211918.

The spelling of 29905868 in words is "twenty-nine million, nine hundred five thousand, eight hundred sixty-eight".