421246898 has 4 divisors (see below), whose sum is σ = 631870350. Its totient is φ = 210623448.

The previous prime is 421246897. The next prime is 421246921. The reversal of 421246898 is 898642124.

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

It can be written as a sum of positive squares in only one way, i.e., 402523969 + 18722929 = 20063^2 + 4327^2 .

It is not an unprimeable number, because it can be changed into a prime (421246897) 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 as a sum of consecutive naturals, namely, 105311723 + ... + 105311726.

Almost surely, 2^421246898 is an apocalyptic number.

421246898 is a deficient number, since it is larger than the sum of its proper divisors (210623452).

421246898 is a wasteful number, since it uses less digits than its factorization.

421246898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210623451.

The product of its digits is 221184, while the sum is 44.

The square root of 421246898 is about 20524.3001829539. The cubic root of 421246898 is about 749.6276065355.

The spelling of 421246898 in words is "four hundred twenty-one million, two hundred forty-six thousand, eight hundred ninety-eight".