29868920 has 16 divisors (see below), whose sum is σ = 67205160. Its totient is φ = 11947552.

The previous prime is 29868913. The next prime is 29868941. The reversal of 29868920 is 2986892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373322 + ... + 373401.

Almost surely, 2^29868920 is an apocalyptic number.

29868920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29868920 is an abundant number, since it is smaller than the sum of its proper divisors (37336240).

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

29868920 is a wasteful number, since it uses less digits than its factorization.

29868920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746734 (or 746730 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 29868920 is about 5465.2465635139. The cubic root of 29868920 is about 310.2700387231.

The spelling of 29868920 in words is "twenty-nine million, eight hundred sixty-eight thousand, nine hundred twenty".