29840811 has 64 divisors (see below), whose sum is σ = 56340480. Its totient is φ = 13530240.

The previous prime is 29840791. The next prime is 29840827. The reversal of 29840811 is 11804892.

It is not a de Polignac number, because 29840811 - 2⁵ = 29840779 is a prime.

It is a super-2 number, since 2×29840811² = 1780948002275442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (29840311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56796 + ... + 57318.

It is an arithmetic number, because the mean of its divisors is an integer number (880320).

Almost surely, 2^29840811 is an apocalyptic number.

29840811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

29840811 is a deficient number, since it is larger than the sum of its proper divisors (26499669).

29840811 is a wasteful number, since it uses less digits than its factorization.

29840811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 29840811 is about 5462.6743450438. The cubic root of 29840811 is about 310.1726786825.

The spelling of 29840811 in words is "twenty-nine million, eight hundred forty thousand, eight hundred eleven".