29909133 has 12 divisors (see below), whose sum is σ = 43723680. Its totient is φ = 19698696.

The previous prime is 29909129. The next prime is 29909153. The reversal of 29909133 is 33190992.

It is not a de Polignac number, because 29909133 - 2² = 29909129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29909153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19273 + ... + 20766.

It is an arithmetic number, because the mean of its divisors is an integer number (3643640).

Almost surely, 2^29909133 is an apocalyptic number.

It is an amenable number.

29909133 is a deficient number, since it is larger than the sum of its proper divisors (13814547).

29909133 is a wasteful number, since it uses less digits than its factorization.

29909133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40128 (or 40125 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 29909133 is about 5468.9243000795. The cubic root of 29909133 is about 310.4092167714.

The spelling of 29909133 in words is "twenty-nine million, nine hundred nine thousand, one hundred thirty-three".