29130660 has 144 divisors (see below), whose sum is σ = 97231680. Its totient is φ = 7015680.

The previous prime is 29130649. The next prime is 29130677. The reversal of 29130660 is 6603192.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137955 + ... + 138165.

It is an arithmetic number, because the mean of its divisors is an integer number (675220).

Almost surely, 2^29130660 is an apocalyptic number.

29130660 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 29130660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48615840).

29130660 is an abundant number, since it is smaller than the sum of its proper divisors (68101020).

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

29130660 is a wasteful number, since it uses less digits than its factorization.

29130660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 29130660 is about 5397.2826496303. The cubic root of 29130660 is about 307.6924038782.

The spelling of 29130660 in words is "twenty-nine million, one hundred thirty thousand, six hundred sixty".