29005380 has 36 divisors (see below), whose sum is σ = 87983532. Its totient is φ = 7734720.

The previous prime is 29005357. The next prime is 29005393. The reversal of 29005380 is 8350092.

It can be written as a sum of positive squares in 2 ways, for example, as 6594624 + 22410756 = 2568^2 + 4734^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80391 + ... + 80750.

It is an arithmetic number, because the mean of its divisors is an integer number (2443987).

Almost surely, 2^29005380 is an apocalyptic number.

29005380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29005380 is an abundant number, since it is smaller than the sum of its proper divisors (58978152).

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

29005380 is a wasteful number, since it uses less digits than its factorization.

29005380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161156 (or 161151 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 29005380 is about 5385.6643044289. The cubic root of 29005380 is about 307.2506803186.

The spelling of 29005380 in words is "twenty-nine million, five thousand, three hundred eighty".