429784389 has 24 divisors (see below), whose sum is σ = 655387200. Its totient is φ = 270648000.

The previous prime is 429784373. The next prime is 429784393. The reversal of 429784389 is 983487924.

It is not a de Polignac number, because 429784389 - 2⁴ = 429784373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429784889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57889 + ... + 64889.

It is an arithmetic number, because the mean of its divisors is an integer number (27307800).

Almost surely, 2^429784389 is an apocalyptic number.

It is an amenable number.

429784389 is a deficient number, since it is larger than the sum of its proper divisors (225602811).

429784389 is a wasteful number, since it uses less digits than its factorization.

429784389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385 (or 7382 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 429784389 is about 20731.2418586056. The cubic root of 429784389 is about 754.6580554668.

The spelling of 429784389 in words is "four hundred twenty-nine million, seven hundred eighty-four thousand, three hundred eighty-nine".