420419698 has 4 divisors (see below), whose sum is σ = 630629550. Its totient is φ = 210209848.

The previous prime is 420419693. The next prime is 420419717. The reversal of 420419698 is 896914024.

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., 406304649 + 14115049 = 20157^2 + 3757^2 .

It is a super-2 number, since 2×420419698² = 353505444932822408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420419693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105104923 + ... + 105104926.

Almost surely, 2^420419698 is an apocalyptic number.

420419698 is a deficient number, since it is larger than the sum of its proper divisors (210209852).

420419698 is a wasteful number, since it uses less digits than its factorization.

420419698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210209851.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 420419698 is about 20504.1385578619. The cubic root of 420419698 is about 749.1366052623.

The spelling of 420419698 in words is "four hundred twenty million, four hundred nineteen thousand, six hundred ninety-eight".