29478012 has 12 divisors (see below), whose sum is σ = 68782056. Its totient is φ = 9826000.

The previous prime is 29477953. The next prime is 29478023. The reversal of 29478012 is 21087492.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1228239 + ... + 1228262.

It is an arithmetic number, because the mean of its divisors is an integer number (5731838).

Almost surely, 2^29478012 is an apocalyptic number.

It is an amenable number.

29478012 is an abundant number, since it is smaller than the sum of its proper divisors (39304044).

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

29478012 is a wasteful number, since it uses less digits than its factorization.

29478012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456508 (or 2456506 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 29478012 is about 5429.3657088098. The cubic root of 29478012 is about 308.9105426989.

The spelling of 29478012 in words is "twenty-nine million, four hundred seventy-eight thousand, twelve".