29288947020 has 48 divisors (see below), whose sum is σ = 82081880160. Its totient is φ = 7803449856.

The previous prime is 29288946989. The next prime is 29288947043. The reversal of 29288947020 is 2074988292.

It is a happy 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, 148447 + ... + 283926.

It is an arithmetic number, because the mean of its divisors is an integer number (1710039170).

Almost surely, 2^29288947020 is an apocalyptic number.

29288947020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29288947020 is an abundant number, since it is smaller than the sum of its proper divisors (52792933140).

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

29288947020 is a wasteful number, since it uses less digits than its factorization.

29288947020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433514 (or 433512 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 29288947020 in words is "twenty-nine billion, two hundred eighty-eight million, nine hundred forty-seven thousand, twenty".