421036045 has 16 divisors (see below), whose sum is σ = 527788800. Its totient is φ = 321830784.

The previous prime is 421036037. The next prime is 421036051. The reversal of 421036045 is 540630124.

It is a cyclic number.

It is not a de Polignac number, because 421036045 - 2³ = 421036037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159577 + ... + 162193.

It is an arithmetic number, because the mean of its divisors is an integer number (32986800).

Almost surely, 2^421036045 is an apocalyptic number.

It is an amenable number.

421036045 is a deficient number, since it is larger than the sum of its proper divisors (106752755).

421036045 is a wasteful number, since it uses less digits than its factorization.

421036045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 421036045 is about 20519.1628727880. The cubic root of 421036045 is about 749.5025115614.

Adding to 421036045 its reverse (540630124), we get a palindrome (961666169).

The spelling of 421036045 in words is "four hundred twenty-one million, thirty-six thousand, forty-five".