29161886 has 32 divisors (see below), whose sum is σ = 49260288. Its totient is φ = 12856320.

The previous prime is 29161877. The next prime is 29161889. The reversal of 29161886 is 68816192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29161889) 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 15 ways as a sum of consecutive naturals, for example, 77996 + ... + 78368.

It is an arithmetic number, because the mean of its divisors is an integer number (1539384).

Almost surely, 2^29161886 is an apocalyptic number.

29161886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

29161886 is a deficient number, since it is larger than the sum of its proper divisors (20098402).

29161886 is a wasteful number, since it uses less digits than its factorization.

29161886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 41472, while the sum is 41.

The square root of 29161886 is about 5400.1746268061. The cubic root of 29161886 is about 307.8023060913.

The spelling of 29161886 in words is "twenty-nine million, one hundred sixty-one thousand, eight hundred eighty-six".