29169332040 has 32 divisors (see below), whose sum is σ = 87507996480. Its totient is φ = 7778488512.

The previous prime is 29169332009. The next prime is 29169332047. The reversal of 29169332040 is 4023396192.

It is a self number, because there is not a number n which added to its sum of digits gives 29169332040.

It is not an unprimeable number, because it can be changed into a prime (29169332047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121538764 + ... + 121539003.

It is an arithmetic number, because the mean of its divisors is an integer number (2734624890).

Almost surely, 2^29169332040 is an apocalyptic number.

29169332040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29169332040 is an abundant number, since it is smaller than the sum of its proper divisors (58338664440).

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

29169332040 is a wasteful number, since it uses less digits than its factorization.

29169332040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243077781 (or 243077777 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The spelling of 29169332040 in words is "twenty-nine billion, one hundred sixty-nine million, three hundred thirty-two thousand, forty".