29838980 has 24 divisors (see below), whose sum is σ = 64191960. Its totient is φ = 11644160.

The previous prime is 29838973. The next prime is 29838989. The reversal of 29838980 is 8983892.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3378244 + 26460736 = 1838^2 + 5144^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29838989) 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, 17375 + ... + 19014.

It is an arithmetic number, because the mean of its divisors is an integer number (2674665).

Almost surely, 2^29838980 is an apocalyptic number.

29838980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29838980 is an abundant number, since it is smaller than the sum of its proper divisors (34352980).

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

29838980 is a wasteful number, since it uses less digits than its factorization.

29838980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36439 (or 36437 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 29838980 is about 5462.5067505679. The cubic root of 29838980 is about 310.1663345990.

The spelling of 29838980 in words is "twenty-nine million, eight hundred thirty-eight thousand, nine hundred eighty".