421061366 has 24 divisors (see below), whose sum is σ = 704618040. Its totient is φ = 188527680.

The previous prime is 421061363. The next prime is 421061387. The reversal of 421061366 is 663160124.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421061363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3230 + ... + 29198.

It is an arithmetic number, because the mean of its divisors is an integer number (29359085).

Almost surely, 2^421061366 is an apocalyptic number.

421061366 is a deficient number, since it is larger than the sum of its proper divisors (283556674).

421061366 is a wasteful number, since it uses less digits than its factorization.

421061366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26060 (or 26049 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 421061366 is about 20519.7798721136. The cubic root of 421061366 is about 749.5175362233.

The spelling of 421061366 in words is "four hundred twenty-one million, sixty-one thousand, three hundred sixty-six".