429131678 has 4 divisors (see below), whose sum is σ = 643697520. Its totient is φ = 214565838.

The previous prime is 429131653. The next prime is 429131687. The reversal of 429131678 is 876131924.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107282918 + ... + 107282921.

It is an arithmetic number, because the mean of its divisors is an integer number (160924380).

Almost surely, 2^429131678 is an apocalyptic number.

429131678 is a deficient number, since it is larger than the sum of its proper divisors (214565842).

429131678 is a wasteful number, since it uses less digits than its factorization.

429131678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214565841.

The product of its digits is 72576, while the sum is 41.

The square root of 429131678 is about 20715.4936701977. The cubic root of 429131678 is about 754.2758303376.

The spelling of 429131678 in words is "four hundred twenty-nine million, one hundred thirty-one thousand, six hundred seventy-eight".