421385435 has 4 divisors (see below), whose sum is σ = 505662528. Its totient is φ = 337108344.

The previous prime is 421385431. The next prime is 421385453. The reversal of 421385435 is 534583124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421385435 - 2² = 421385431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421385395 and 421385404.

It is not an unprimeable number, because it can be changed into a prime (421385431) 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 3 ways as a sum of consecutive naturals, for example, 42138539 + ... + 42138548.

It is an arithmetic number, because the mean of its divisors is an integer number (126415632).

Almost surely, 2^421385435 is an apocalyptic number.

421385435 is a deficient number, since it is larger than the sum of its proper divisors (84277093).

421385435 is an equidigital number, since it uses as much as digits as its factorization.

421385435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84277092.

The product of its digits is 57600, while the sum is 35.

The square root of 421385435 is about 20527.6748561546. The cubic root of 421385435 is about 749.7097751146.

The spelling of 421385435 in words is "four hundred twenty-one million, three hundred eighty-five thousand, four hundred thirty-five".