429894981 has 12 divisors (see below), whose sum is σ = 630228352. Its totient is φ = 282318696.

The previous prime is 429894973. The next prime is 429895013. The reversal of 429894981 is 189498924.

It is not a de Polignac number, because 429894981 - 2³ = 429894973 is a prime.

It is a super-2 number, since 2×429894981² = 369619389377980722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429894901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355861 + ... + 357066.

Almost surely, 2^429894981 is an apocalyptic number.

It is an amenable number.

429894981 is a deficient number, since it is larger than the sum of its proper divisors (200333371).

429894981 is a wasteful number, since it uses less digits than its factorization.

429894981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713000 (or 712997 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 429894981 is about 20733.9089657498. The cubic root of 429894981 is about 754.7227793829.

The spelling of 429894981 in words is "four hundred twenty-nine million, eight hundred ninety-four thousand, nine hundred eighty-one".