29428923401 has 4 divisors (see below), whose sum is σ = 29832059412. Its totient is φ = 29025787392.

The previous prime is 29428923383. The next prime is 29428923449. The reversal of 29428923401 is 10432982492.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18840307600 + 10588615801 = 137260^2 + 102901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29428923401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29428923301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201567896 + ... + 201568041.

It is an arithmetic number, because the mean of its divisors is an integer number (7458014853).

Almost surely, 2^29428923401 is an apocalyptic number.

It is an amenable number.

29428923401 is a deficient number, since it is larger than the sum of its proper divisors (403136011).

29428923401 is an equidigital number, since it uses as much as digits as its factorization.

29428923401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403136010.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 29428923401 in words is "twenty-nine billion, four hundred twenty-eight million, nine hundred twenty-three thousand, four hundred one".