429778966 has 8 divisors (see below), whose sum is σ = 672697584. Its totient is φ = 205546440.

The previous prime is 429778931. The next prime is 429778969. The reversal of 429778966 is 669877924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 429778966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429778969) 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, 4671465 + ... + 4671556.

It is an arithmetic number, because the mean of its divisors is an integer number (84087198).

Almost surely, 2^429778966 is an apocalyptic number.

429778966 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

429778966 is a deficient number, since it is larger than the sum of its proper divisors (242918618).

429778966 is a wasteful number, since it uses less digits than its factorization.

429778966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343046.

The product of its digits is 9144576, while the sum is 58.

The square root of 429778966 is about 20731.1110652565. Note that the first 3 decimals coincide. The cubic root of 429778966 is about 754.6548813731.

The spelling of 429778966 in words is "four hundred twenty-nine million, seven hundred seventy-eight thousand, nine hundred sixty-six".