29796820 has 12 divisors (see below), whose sum is σ = 62573364. Its totient is φ = 11918720.

The previous prime is 29796817. The next prime is 29796821. The reversal of 29796820 is 2869792.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11168964 + 18627856 = 3342^2 + 4316^2 .

It is a super-2 number, since 2×29796820² = 1775700964224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29796821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744901 + ... + 744940.

It is an arithmetic number, because the mean of its divisors is an integer number (5214447).

Almost surely, 2^29796820 is an apocalyptic number.

29796820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29796820 is an abundant number, since it is smaller than the sum of its proper divisors (32776544).

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

29796820 is a wasteful number, since it uses less digits than its factorization.

29796820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489850 (or 1489848 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 29796820 is about 5458.6463523478. The cubic root of 29796820 is about 310.0201859904.

The spelling of 29796820 in words is "twenty-nine million, seven hundred ninety-six thousand, eight hundred twenty".