421986196 has 6 divisors (see below), whose sum is σ = 738475850. Its totient is φ = 210993096.

The previous prime is 421986179. The next prime is 421986241. The reversal of 421986196 is 691689124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 392436100 + 29550096 = 19810^2 + 5436^2 .

It is a super-2 number, since 2×421986196² = 356144699229100832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 52748271 + ... + 52748278.

Almost surely, 2^421986196 is an apocalyptic number.

It is an amenable number.

421986196 is a deficient number, since it is larger than the sum of its proper divisors (316489654).

421986196 is a wasteful number, since it uses less digits than its factorization.

421986196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105496553 (or 105496551 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 421986196 is about 20542.3025973234. The cubic root of 421986196 is about 750.0658881374.

The spelling of 421986196 in words is "four hundred twenty-one million, nine hundred eighty-six thousand, one hundred ninety-six".