29308420 has 12 divisors (see below), whose sum is σ = 61547724. Its totient is φ = 11723360.

The previous prime is 29308387. The next prime is 29308421. The reversal of 29308420 is 2480392.

It can be written as a sum of positive squares in 2 ways, for example, as 13957696 + 15350724 = 3736^2 + 3918^2 .

It is not an unprimeable number, because it can be changed into a prime (29308421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732691 + ... + 732730.

It is an arithmetic number, because the mean of its divisors is an integer number (5128977).

Almost surely, 2^29308420 is an apocalyptic number.

29308420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29308420 is an abundant number, since it is smaller than the sum of its proper divisors (32239304).

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

29308420 is a wasteful number, since it uses less digits than its factorization.

29308420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465430 (or 1465428 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 29308420 is about 5413.7251500238. The cubic root of 29308420 is about 308.3169980795.

The spelling of 29308420 in words is "twenty-nine million, three hundred eight thousand, four hundred twenty".