29112020 has 48 divisors (see below), whose sum is σ = 72914688. Its totient is φ = 9546240.

The previous prime is 29112011. The next prime is 29112049. The reversal of 29112020 is 2021192.

It is a self number, because there is not a number n which added to its sum of digits gives 29112020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301 + ... + 7740.

It is an arithmetic number, because the mean of its divisors is an integer number (1519056).

Almost surely, 2^29112020 is an apocalyptic number.

29112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29112020 is an abundant number, since it is smaller than the sum of its proper divisors (43802668).

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

29112020 is a wasteful number, since it uses less digits than its factorization.

29112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080 (or 9078 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 29112020 is about 5395.5555784368. Note that the first 4 decimals coincide. The cubic root of 29112020 is about 307.6267615829.

The spelling of 29112020 in words is "twenty-nine million, one hundred twelve thousand, twenty".