29681116 has 24 divisors (see below), whose sum is σ = 57894480. Its totient is φ = 13231872.

The previous prime is 29681107. The next prime is 29681117. The reversal of 29681116 is 61118692.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29681117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10195 + ... + 12778.

It is an arithmetic number, because the mean of its divisors is an integer number (2412270).

Almost surely, 2^29681116 is an apocalyptic number.

It is an amenable number.

29681116 is a deficient number, since it is larger than the sum of its proper divisors (28213364).

29681116 is a wasteful number, since it uses less digits than its factorization.

29681116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23013 (or 23011 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 29681116 is about 5448.0378119099. The cubic root of 29681116 is about 309.6183857795.

The spelling of 29681116 in words is "twenty-nine million, six hundred eighty-one thousand, one hundred sixteen".