29113920 has 168 divisors, whose sum is σ = 109362240. Its totient is φ = 7050240.

The previous prime is 29113913. The next prime is 29113921. The reversal of 29113920 is 2931192.

It is not an unprimeable number, because it can be changed into a prime (29113921) 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, 31221 + ... + 32139.

Almost surely, 2^29113920 is an apocalyptic number.

29113920 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 29113920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54681120).

29113920 is an abundant number, since it is smaller than the sum of its proper divisors (80248320).

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

29113920 is a wasteful number, since it uses less digits than its factorization.

29113920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 29113920 is about 5395.7316464035. The cubic root of 29113920 is about 307.6334538717.

The spelling of 29113920 in words is "twenty-nine million, one hundred thirteen thousand, nine hundred twenty".