29169980 has 48 divisors (see below), whose sum is σ = 73059840. Its totient is φ = 9565248.

The previous prime is 29169971. The next prime is 29169989. The reversal of 29169980 is 8996192.

It is an interprime number because it is at equal distance from previous prime (29169971) and next prime (29169989).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29169989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310 + ... + 7749.

It is an arithmetic number, because the mean of its divisors is an integer number (1522080).

Almost surely, 2^29169980 is an apocalyptic number.

29169980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29169980 is an abundant number, since it is smaller than the sum of its proper divisors (43889860).

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

29169980 is a wasteful number, since it uses less digits than its factorization.

29169980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9098 (or 9096 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 29169980 is about 5400.9239950216. The cubic root of 29169980 is about 307.8307807175.

The spelling of 29169980 in words is "twenty-nine million, one hundred sixty-nine thousand, nine hundred eighty".