29240622729 has 32 divisors (see below), whose sum is σ = 45432541440. Its totient is φ = 18551465856.

The previous prime is 29240622721. The next prime is 29240622779. The reversal of 29240622729 is 92722604292.

It is not a de Polignac number, because 29240622729 - 2³ = 29240622721 is a prime.

It is a super-2 number, since 2×29240622729² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29240622721) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2829 + ... + 241845.

It is an arithmetic number, because the mean of its divisors is an integer number (1419766920).

Almost surely, 2^29240622729 is an apocalyptic number.

It is an amenable number.

29240622729 is a deficient number, since it is larger than the sum of its proper divisors (16191918711).

29240622729 is a wasteful number, since it uses less digits than its factorization.

29240622729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239246 (or 239240 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 29240622729 in words is "twenty-nine billion, two hundred forty million, six hundred twenty-two thousand, seven hundred twenty-nine".