29009940 has 24 divisors (see below), whose sum is σ = 81228000. Its totient is φ = 7735968.

The previous prime is 29009909. The next prime is 29009963. The reversal of 29009940 is 4990092.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 241690 + ... + 241809.

It is an arithmetic number, because the mean of its divisors is an integer number (3384500).

Almost surely, 2^29009940 is an apocalyptic number.

29009940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29009940 is an abundant number, since it is smaller than the sum of its proper divisors (52218060).

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

29009940 is a wasteful number, since it uses less digits than its factorization.

29009940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483511 (or 483509 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 29009940 is about 5386.0876338953. The cubic root of 29009940 is about 307.2667806614.

The spelling of 29009940 in words is "twenty-nine million, nine thousand, nine hundred forty".