29269920 has 144 divisors (see below), whose sum is σ = 98407008. Its totient is φ = 7311360.

The previous prime is 29269909. The next prime is 29269927. The reversal of 29269920 is 2996292.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29269927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138615 + ... + 138825.

It is an arithmetic number, because the mean of its divisors is an integer number (683382).

Almost surely, 2^29269920 is an apocalyptic number.

29269920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29269920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49203504).

29269920 is an abundant number, since it is smaller than the sum of its proper divisors (69137088).

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

29269920 is a wasteful number, since it uses less digits than its factorization.

29269920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 29269920 is about 5410.1682044092. The cubic root of 29269920 is about 308.1819355747.

The spelling of 29269920 in words is "twenty-nine million, two hundred sixty-nine thousand, nine hundred twenty".