421041345 has 16 divisors (see below), whose sum is σ = 677564352. Its totient is φ = 223256000.

The previous prime is 421041319. The next prime is 421041359. The reversal of 421041345 is 543140124.

421041345 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 421041345 - 2⁷ = 421041217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78531 + ... + 83720.

It is an arithmetic number, because the mean of its divisors is an integer number (42347772).

Almost surely, 2^421041345 is an apocalyptic number.

It is an amenable number.

421041345 is a deficient number, since it is larger than the sum of its proper divisors (256523007).

421041345 is a wasteful number, since it uses less digits than its factorization.

421041345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162432.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 421041345 is about 20519.2920199504. The cubic root of 421041345 is about 749.5056564598.

Adding to 421041345 its reverse (543140124), we get a palindrome (964181469).

The spelling of 421041345 in words is "four hundred twenty-one million, forty-one thousand, three hundred forty-five".