29081286 has 96 divisors (see below), whose sum is σ = 74081280. Its totient is φ = 8164800.

The previous prime is 29081257. The next prime is 29081347. The reversal of 29081286 is 68218092.

It is a self number, because there is not a number n which added to its sum of digits gives 29081286.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 137721 + ... + 137931.

It is an arithmetic number, because the mean of its divisors is an integer number (771680).

Almost surely, 2^29081286 is an apocalyptic number.

29081286 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 29081286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37040640).

29081286 is an abundant number, since it is smaller than the sum of its proper divisors (44999994).

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

29081286 is a wasteful number, since it uses less digits than its factorization.

29081286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 29081286 is about 5392.7067415167. The cubic root of 29081286 is about 307.5184680560.

The spelling of 29081286 in words is "twenty-nine million, eighty-one thousand, two hundred eighty-six".