29749216 has 48 divisors (see below), whose sum is σ = 68100480. Its totient is φ = 12528000.

The previous prime is 29749211. The next prime is 29749217. The reversal of 29749216 is 61294792.

It is a super-2 number, since 2×29749216² = 1770031705229312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29749211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12091 + ... + 14341.

It is an arithmetic number, because the mean of its divisors is an integer number (1418760).

Almost surely, 2^29749216 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 29749216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34050240).

29749216 is an abundant number, since it is smaller than the sum of its proper divisors (38351264).

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

29749216 is a wasteful number, since it uses less digits than its factorization.

29749216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327 (or 2319 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 29749216 is about 5454.2841876822. The cubic root of 29749216 is about 309.8549998257.

The spelling of 29749216 in words is "twenty-nine million, seven hundred forty-nine thousand, two hundred sixteen".