429721949 has 8 divisors (see below), whose sum is σ = 449597760. Its totient is φ = 409945536.

The previous prime is 429721939. The next prime is 429721979. The reversal of 429721949 is 949127924.

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

It is a cyclic number.

It is not a de Polignac number, because 429721949 - 2¹⁶ = 429656413 is a prime.

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 (429721909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15932 + ... + 33365.

It is an arithmetic number, because the mean of its divisors is an integer number (56199720).

Almost surely, 2^429721949 is an apocalyptic number.

It is an amenable number.

429721949 is a deficient number, since it is larger than the sum of its proper divisors (19875811).

429721949 is a wasteful number, since it uses less digits than its factorization.

429721949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49699.

The product of its digits is 326592, while the sum is 47.

The square root of 429721949 is about 20729.7358642121. The cubic root of 429721949 is about 754.6215075820.

The spelling of 429721949 in words is "four hundred twenty-nine million, seven hundred twenty-one thousand, nine hundred forty-nine".