29721468 has 48 divisors (see below), whose sum is σ = 80455424. Its totient is φ = 8363520.

The previous prime is 29721449. The next prime is 29721469. The reversal of 29721468 is 86412792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29721469) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2988 + ... + 8268.

Almost surely, 2^29721468 is an apocalyptic number.

29721468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29721468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40227712).

29721468 is an abundant number, since it is smaller than the sum of its proper divisors (50733956).

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

29721468 is a wasteful number, since it uses less digits than its factorization.

29721468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362 (or 5360 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 29721468 is about 5451.7399057549. The cubic root of 29721468 is about 309.7586327922.

The spelling of 29721468 in words is "twenty-nine million, seven hundred twenty-one thousand, four hundred sixty-eight".