422819986 has 4 divisors (see below), whose sum is σ = 634229982. Its totient is φ = 211409992.

The previous prime is 422819963. The next prime is 422820059. The reversal of 422819986 is 689918224.

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., 398760961 + 24059025 = 19969^2 + 4905^2 .

It is a super-2 number, since 2×422819986² = 357553481122080392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105704995 + ... + 105704998.

Almost surely, 2^422819986 is an apocalyptic number.

422819986 is a deficient number, since it is larger than the sum of its proper divisors (211409996).

422819986 is a wasteful number, since it uses less digits than its factorization.

422819986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211409995.

The product of its digits is 497664, while the sum is 49.

The square root of 422819986 is about 20562.5870454085. The cubic root of 422819986 is about 750.5595741023.

The spelling of 422819986 in words is "four hundred twenty-two million, eight hundred nineteen thousand, nine hundred eighty-six".