29705980 has 24 divisors (see below), whose sum is σ = 62510112. Its totient is φ = 11858112.

The previous prime is 29705971. The next prime is 29705989. The reversal of 29705980 is 8950792.

It is an interprime number because it is at equal distance from previous prime (29705971) and next prime (29705989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29705989) 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, 11049 + ... + 13471.

It is an arithmetic number, because the mean of its divisors is an integer number (2604588).

Almost surely, 2^29705980 is an apocalyptic number.

29705980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29705980 is an abundant number, since it is smaller than the sum of its proper divisors (32804132).

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

29705980 is a wasteful number, since it uses less digits than its factorization.

29705980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045 (or 3043 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 29705980 is about 5450.3192567041. The cubic root of 29705980 is about 309.7048178720.

The spelling of 29705980 in words is "twenty-nine million, seven hundred five thousand, nine hundred eighty".