429742681 has 4 divisors (see below), whose sum is σ = 429933364. Its totient is φ = 429552000.

The previous prime is 429742673. The next prime is 429742697. The reversal of 429742681 is 186247924.

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

It can be written as a sum of positive squares in 2 ways, for example, as 113614281 + 316128400 = 10659^2 + 17780^2 .

It is a cyclic number.

It is not a de Polignac number, because 429742681 - 2³ = 429742673 is a prime.

It is a super-2 number, since 2×429742681² = 369357543746135522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (429742601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91920 + ... + 96481.

It is an arithmetic number, because the mean of its divisors is an integer number (107483341).

Almost surely, 2^429742681 is an apocalyptic number.

It is an amenable number.

429742681 is a deficient number, since it is larger than the sum of its proper divisors (190683).

429742681 is a wasteful number, since it uses less digits than its factorization.

429742681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190682.

The product of its digits is 193536, while the sum is 43.

The square root of 429742681 is about 20730.2359127917. The cubic root of 429742681 is about 754.6336429961.

The spelling of 429742681 in words is "four hundred twenty-nine million, seven hundred forty-two thousand, six hundred eighty-one".