29985844 has 18 divisors (see below), whose sum is σ = 61043010. Its totient is φ = 12850992.

The previous prime is 29985833. The next prime is 29985853. The reversal of 29985844 is 44858992.

It can be written as a sum of positive squares in only one way, i.e., 15697444 + 14288400 = 3962^2 + 3780^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76299 + ... + 76690.

Almost surely, 2^29985844 is an apocalyptic number.

It is an amenable number.

29985844 is an abundant number, since it is smaller than the sum of its proper divisors (31057166).

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

29985844 is a wasteful number, since it uses less digits than its factorization.

29985844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153007 (or 152998 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 29985844 is about 5475.9331624847. The cubic root of 29985844 is about 310.6743695913.

The spelling of 29985844 in words is "twenty-nine million, nine hundred eighty-five thousand, eight hundred forty-four".