29420306890 has 64 divisors (see below), whose sum is σ = 58227271200. Its totient is φ = 10635715584.

The previous prime is 29420306887. The next prime is 29420306899. The reversal of 29420306890 is 9860302492.

It can be written as a sum of positive squares in 16 ways, for example, as 9823386769 + 19596920121 = 99113^2 + 139989^2 .

It is a super-3 number, since 3×29420306890³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (29420306899) 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 31 ways as a sum of consecutive naturals, for example, 3502816 + ... + 3511204.

Almost surely, 2^29420306890 is an apocalyptic number.

29420306890 is a deficient number, since it is larger than the sum of its proper divisors (28806964310).

29420306890 is a wasteful number, since it uses less digits than its factorization.

29420306890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8971.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 29420306890 in words is "twenty-nine billion, four hundred twenty million, three hundred six thousand, eight hundred ninety".