29228418939 has 16 divisors (see below), whose sum is σ = 39936904832. Its totient is φ = 19004122368.

The previous prime is 29228418859. The next prime is 29228419069. The reversal of 29228418939 is 93981482292.

It is a happy number.

It is not a de Polignac number, because 29228418939 - 2¹² = 29228414843 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29228411939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81517 + ... + 255150.

It is an arithmetic number, because the mean of its divisors is an integer number (2496056552).

Almost surely, 2^29228418939 is an apocalyptic number.

29228418939 is a deficient number, since it is larger than the sum of its proper divisors (10708485893).

29228418939 is a wasteful number, since it uses less digits than its factorization.

29228418939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337386.

The product of its digits is 4478976, while the sum is 57.

The spelling of 29228418939 in words is "twenty-nine billion, two hundred twenty-eight million, four hundred eighteen thousand, nine hundred thirty-nine".