29449980 has 240 divisors, whose sum is σ = 109771200. Its totient is φ = 6604416.

The previous prime is 29449957. The next prime is 29450009. The reversal of 29449980 is 8994492.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 555634 + ... + 555686.

It is an arithmetic number, because the mean of its divisors is an integer number (457380).

Almost surely, 2^29449980 is an apocalyptic number.

29449980 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 29449980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54885600).

29449980 is an abundant number, since it is smaller than the sum of its proper divisors (80321220).

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

29449980 is a wasteful number, since it uses less digits than its factorization.

29449980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 29449980 is about 5426.7835777742. The cubic root of 29449980 is about 308.8125925539.

The spelling of 29449980 in words is "twenty-nine million, four hundred forty-nine thousand, nine hundred eighty".