421065434 has 8 divisors (see below), whose sum is σ = 631964928. Its totient is φ = 210410460.

The previous prime is 421065419. The next prime is 421065487. The reversal of 421065434 is 434560124.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421065397 and 421065406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56762 + ... + 63749.

It is an arithmetic number, because the mean of its divisors is an integer number (78995616).

Almost surely, 2^421065434 is an apocalyptic number.

421065434 is a deficient number, since it is larger than the sum of its proper divisors (210899494).

421065434 is a wasteful number, since it uses less digits than its factorization.

421065434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122260.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 421065434 is about 20519.8789957446. The cubic root of 421065434 is about 749.5199499867.

The spelling of 421065434 in words is "four hundred twenty-one million, sixty-five thousand, four hundred thirty-four".