29999814 has 32 divisors (see below), whose sum is σ = 65103360. Its totient is φ = 9160992.

The previous prime is 29999791. The next prime is 29999819. The reversal of 29999814 is 41899992.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29999819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9459 + ... + 12225.

It is an arithmetic number, because the mean of its divisors is an integer number (2034480).

Almost surely, 2^29999814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29999814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32551680).

29999814 is an abundant number, since it is smaller than the sum of its proper divisors (35103546).

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

29999814 is a wasteful number, since it uses less digits than its factorization.

29999814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924.

The product of its digits is 419904, while the sum is 51.

The square root of 29999814 is about 5477.2085956261. The cubic root of 29999814 is about 310.7226084327.

The spelling of 29999814 in words is "twenty-nine million, nine hundred ninety-nine thousand, eight hundred fourteen".