29122183940 has 12 divisors (see below), whose sum is σ = 61156586316. Its totient is φ = 11648873568.

The previous prime is 29122183927. The next prime is 29122183949. The reversal of 29122183940 is 4938122192.

It can be written as a sum of positive squares in 2 ways, for example, as 9996400324 + 19125783616 = 99982^2 + 138296^2 .

It is not an unprimeable number, because it can be changed into a prime (29122183949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728054579 + ... + 728054618.

It is an arithmetic number, because the mean of its divisors is an integer number (5096382193).

Almost surely, 2^29122183940 is an apocalyptic number.

29122183940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29122183940 is an abundant number, since it is smaller than the sum of its proper divisors (32034402376).

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

29122183940 is a wasteful number, since it uses less digits than its factorization.

29122183940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456109206 (or 1456109204 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 29122183940 in words is "twenty-nine billion, one hundred twenty-two million, one hundred eighty-three thousand, nine hundred forty".