29218842 has 12 divisors (see below), whose sum is σ = 63307530. Its totient is φ = 9739608.

The previous prime is 29218837. The next prime is 29218853. The reversal of 29218842 is 24881292.

It can be written as a sum of positive squares in only one way, i.e., 18584721 + 10634121 = 4311^2 + 3261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 29218797 and 29218806.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 811617 + ... + 811652.

Almost surely, 2^29218842 is an apocalyptic number.

29218842 is an abundant number, since it is smaller than the sum of its proper divisors (34088688).

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

29218842 is a wasteful number, since it uses less digits than its factorization.

29218842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623277 (or 1623274 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 29218842 is about 5405.4455875534. The cubic root of 29218842 is about 308.0025650543.

It can be divided in two parts, 292188 and 42, that added together give a triangular number (292230 = T₇₆₄).

The spelling of 29218842 in words is "twenty-nine million, two hundred eighteen thousand, eight hundred forty-two".