29643832428 has 72 divisors (see below), whose sum is σ = 80636355072. Its totient is φ = 8451295776.

The previous prime is 29643832411. The next prime is 29643832459. The reversal of 29643832428 is 82423834692.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217801 + ... + 326687.

It is an arithmetic number, because the mean of its divisors is an integer number (1119949376).

Almost surely, 2^29643832428 is an apocalyptic number.

29643832428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29643832428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40318177536).

29643832428 is an abundant number, since it is smaller than the sum of its proper divisors (50992522644).

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

29643832428 is a wasteful number, since it uses less digits than its factorization.

29643832428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109371 (or 109362 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 51.

The spelling of 29643832428 in words is "twenty-nine billion, six hundred forty-three million, eight hundred thirty-two thousand, four hundred twenty-eight".