29720012 has 48 divisors (see below), whose sum is σ = 65136960. Its totient is φ = 11569152.

The previous prime is 29720003. The next prime is 29720023. The reversal of 29720012 is 21002792.

It is a super-2 number, since 2×29720012² = 1766558226560288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29720012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12728 + ... + 14880.

It is an arithmetic number, because the mean of its divisors is an integer number (1357020).

Almost surely, 2^29720012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29720012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32568480).

29720012 is an abundant number, since it is smaller than the sum of its proper divisors (35416948).

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

29720012 is a wasteful number, since it uses less digits than its factorization.

29720012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 29720012 is about 5451.6063687688. The cubic root of 29720012 is about 309.7535745413.

The spelling of 29720012 in words is "twenty-nine million, seven hundred twenty thousand, twelve".