29936920 has 32 divisors (see below), whose sum is σ = 72540720. Its totient is φ = 11053440.

The previous prime is 29936911. The next prime is 29936923. The reversal of 29936920 is 2963992.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29936923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28266 + ... + 29305.

Almost surely, 2^29936920 is an apocalyptic number.

29936920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29936920 is an abundant number, since it is smaller than the sum of its proper divisors (42603800).

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

29936920 is a wasteful number, since it uses less digits than its factorization.

29936920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57595 (or 57591 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 29936920 is about 5471.4641550503. The cubic root of 29936920 is about 310.5053153017.

The spelling of 29936920 in words is "twenty-nine million, nine hundred thirty-six thousand, nine hundred twenty".