429638868 has 36 divisors (see below), whose sum is σ = 1143192960. Its totient is φ = 135675216.

The previous prime is 429638863. The next prime is 429638879. The reversal of 429638868 is 868836924.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429638863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313380 + ... + 314747.

It is an arithmetic number, because the mean of its divisors is an integer number (31755360).

Almost surely, 2^429638868 is an apocalyptic number.

It is an amenable number.

429638868 is an abundant number, since it is smaller than the sum of its proper divisors (713554092).

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

429638868 is a wasteful number, since it uses less digits than its factorization.

429638868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628156 (or 628151 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 429638868 is about 20727.7318585512. The cubic root of 429638868 is about 754.5728724506.

The spelling of 429638868 in words is "four hundred twenty-nine million, six hundred thirty-eight thousand, eight hundred sixty-eight".