421068490 has 8 divisors (see below), whose sum is σ = 757923300. Its totient is φ = 168427392.

The previous prime is 421068469. The next prime is 421068491. The reversal of 421068490 is 94860124.

It can be written as a sum of positive squares in 2 ways, for example, as 420537049 + 531441 = 20507^2 + 729^2 .

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

It is not an unprimeable number, because it can be changed into a prime (421068491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21053415 + ... + 21053434.

Almost surely, 2^421068490 is an apocalyptic number.

421068490 is a deficient number, since it is larger than the sum of its proper divisors (336854810).

421068490 is a wasteful number, since it uses less digits than its factorization.

421068490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42106856.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 421068490 is about 20519.9534599862. The cubic root of 421068490 is about 749.5217632658.

The spelling of 421068490 in words is "four hundred twenty-one million, sixty-eight thousand, four hundred ninety".