29442780428 has 24 divisors (see below), whose sum is σ = 52389755712. Its totient is φ = 14475084624.

The previous prime is 29442780349. The next prime is 29442780461. The reversal of 29442780428 is 82408724492.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

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, 46175 + ... + 247017.

It is an arithmetic number, because the mean of its divisors is an integer number (2182906488).

Almost surely, 2^29442780428 is an apocalyptic number.

It is an amenable number.

29442780428 is a deficient number, since it is larger than the sum of its proper divisors (22946975284).

29442780428 is a wasteful number, since it uses less digits than its factorization.

29442780428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201461 (or 201459 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 29442780428 in words is "twenty-nine billion, four hundred forty-two million, seven hundred eighty thousand, four hundred twenty-eight".