221429034 has 12 divisors (see below), whose sum is σ = 479762946. Its totient is φ = 73809672.

The previous prime is 221428997. The next prime is 221429041. The reversal of 221429034 is 430924122.

It can be written as a sum of positive squares in only one way, i.e., 219188025 + 2241009 = 14805^2 + 1497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221428989 and 221429007.

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, 6150789 + ... + 6150824.

Almost surely, 2^221429034 is an apocalyptic number.

221429034 is an abundant number, since it is smaller than the sum of its proper divisors (258333912).

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

221429034 is a wasteful number, since it uses less digits than its factorization.

221429034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12301621 (or 12301618 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 221429034 is about 14880.4917257462. The cubic root of 221429034 is about 604.9853458190.

The spelling of 221429034 in words is "two hundred twenty-one million, four hundred twenty-nine thousand, thirty-four".