29228449728 has 56 divisors (see below), whose sum is σ = 78130910032. Its totient is φ = 9642369024.

The previous prime is 29228449717. The next prime is 29228449739. The reversal of 29228449728 is 82794482292.

It is an interprime number because it is at equal distance from previous prime (29228449717) and next prime (29228449739).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766075 + ... + 803322.

It is an arithmetic number, because the mean of its divisors is an integer number (1395194822).

Almost surely, 2^29228449728 is an apocalyptic number.

It is an amenable number.

29228449728 is an abundant number, since it is smaller than the sum of its proper divisors (48902460304).

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

29228449728 is a wasteful number, since it uses less digits than its factorization.

29228449728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569509 (or 1569499 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The spelling of 29228449728 in words is "twenty-nine billion, two hundred twenty-eight million, four hundred forty-nine thousand, seven hundred twenty-eight".