29439480 has 128 divisors (see below), whose sum is σ = 102228480. Its totient is φ = 6643200.

The previous prime is 29439419. The next prime is 29439481. The reversal of 29439480 is 8493492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29439481) 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 31 ways as a sum of consecutive naturals, for example, 84667 + ... + 85013.

It is an arithmetic number, because the mean of its divisors is an integer number (798660).

Almost surely, 2^29439480 is an apocalyptic number.

29439480 is a gapful number since it is divisible by the number (20) 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 29439480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51114240).

29439480 is an abundant number, since it is smaller than the sum of its proper divisors (72789000).

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

29439480 is a wasteful number, since it uses less digits than its factorization.

29439480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 29439480 is about 5425.8160676529. The cubic root of 29439480 is about 308.7758871791.

The spelling of 29439480 in words is "twenty-nine million, four hundred thirty-nine thousand, four hundred eighty".