29161080 has 256 divisors, whose sum is σ = 109670400. Its totient is φ = 6842880.

The previous prime is 29161063. The next prime is 29161081. The reversal of 29161080 is 8016192.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29161081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 435207 + ... + 435273.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

Almost surely, 2^29161080 is an apocalyptic number.

29161080 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 29161080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54835200).

29161080 is an abundant number, since it is smaller than the sum of its proper divisors (80509320).

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

29161080 is a wasteful number, since it uses less digits than its factorization.

29161080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 29161080 is about 5400.0999990741. The cubic root of 29161080 is about 307.7994703014.

The spelling of 29161080 in words is "twenty-nine million, one hundred sixty-one thousand, eighty".