29020866 has 64 divisors (see below), whose sum is σ = 71608320. Its totient is φ = 7655040.

The previous prime is 29020843. The next prime is 29020883. The reversal of 29020866 is 66802092.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32275 + ... + 33161.

It is an arithmetic number, because the mean of its divisors is an integer number (1118880).

Almost surely, 2^29020866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29020866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35804160).

29020866 is an abundant number, since it is smaller than the sum of its proper divisors (42587454).

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

29020866 is a wasteful number, since it uses less digits than its factorization.

29020866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 29020866 is about 5387.1018182321. The cubic root of 29020866 is about 307.3053510671.

It can be divided in two parts, 2902086 and 6, that added together give a palindrome (2902092).

The spelling of 29020866 in words is "twenty-nine million, twenty thousand, eight hundred sixty-six".