29684145 has 32 divisors (see below), whose sum is σ = 49996800. Its totient is φ = 15009984.

The previous prime is 29684117. The next prime is 29684167. The reversal of 29684145 is 54148692.

It is not a de Polignac number, because 29684145 - 2¹⁹ = 29159857 is a prime.

It is a super-2 number, since 2×29684145² = 1762296928762050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 47646 + ... + 48264.

It is an arithmetic number, because the mean of its divisors is an integer number (1562400).

Almost surely, 2^29684145 is an apocalyptic number.

It is an amenable number.

29684145 is a deficient number, since it is larger than the sum of its proper divisors (20312655).

29684145 is a wasteful number, since it uses less digits than its factorization.

29684145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its digits is 69120, while the sum is 39.

The square root of 29684145 is about 5448.3157948122. The cubic root of 29684145 is about 309.6289177531.

The spelling of 29684145 in words is "twenty-nine million, six hundred eighty-four thousand, one hundred forty-five".