29018420 has 24 divisors (see below), whose sum is σ = 61050024. Its totient is φ = 11586176.

The previous prime is 29018413. The next prime is 29018441. The reversal of 29018420 is 2481092.

It can be written as a sum of positive squares in 4 ways, for example, as 417316 + 28601104 = 646^2 + 5348^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 29018420.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14522 + ... + 16398.

It is an arithmetic number, because the mean of its divisors is an integer number (2543751).

Almost surely, 2^29018420 is an apocalyptic number.

29018420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29018420 is an abundant number, since it is smaller than the sum of its proper divisors (32031604).

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

29018420 is a wasteful number, since it uses less digits than its factorization.

29018420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 29018420 is about 5386.8747897088. The cubic root of 29018420 is about 307.2967171643.

The spelling of 29018420 in words is "twenty-nine million, eighteen thousand, four hundred twenty".