29728738842 has 16 divisors (see below), whose sum is σ = 64862703072. Its totient is φ = 9008708720.

The previous prime is 29728738829. The next prime is 29728738847. The reversal of 29728738842 is 24883782792.

It is not an unprimeable number, because it can be changed into a prime (29728738847) 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, 225217653 + ... + 225217784.

It is an arithmetic number, because the mean of its divisors is an integer number (4053918942).

Almost surely, 2^29728738842 is an apocalyptic number.

29728738842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29728738842 is an abundant number, since it is smaller than the sum of its proper divisors (35133964230).

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

29728738842 is a wasteful number, since it uses less digits than its factorization.

29728738842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450435453.

The product of its digits is 21676032, while the sum is 60.

The spelling of 29728738842 in words is "twenty-nine billion, seven hundred twenty-eight million, seven hundred thirty-eight thousand, eight hundred forty-two".