29684680 has 16 divisors (see below), whose sum is σ = 66790620. Its totient is φ = 11873856.

The previous prime is 29684671. The next prime is 29684687. The reversal of 29684680 is 8648692.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29008996 + 675684 = 5386^2 + 822^2 .

It is not an unprimeable number, because it can be changed into a prime (29684687) 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, 371019 + ... + 371098.

Almost surely, 2^29684680 is an apocalyptic number.

29684680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29684680 is an abundant number, since it is smaller than the sum of its proper divisors (37105940).

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

29684680 is a wasteful number, since it uses less digits than its factorization.

29684680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742128 (or 742124 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 29684680 is about 5448.3648923324. The cubic root of 29684680 is about 309.6307778984.

The spelling of 29684680 in words is "twenty-nine million, six hundred eighty-four thousand, six hundred eighty".