420874658 has 8 divisors (see below), whose sum is σ = 637820652. Its totient is φ = 208267776.

The previous prime is 420874621. The next prime is 420874679. The reversal of 420874658 is 856478024.

It can be written as a sum of positive squares in 2 ways, for example, as 352200289 + 68674369 = 18767^2 + 8287^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084535 + ... + 1084922.

Almost surely, 2^420874658 is an apocalyptic number.

420874658 is a deficient number, since it is larger than the sum of its proper divisors (216945994).

420874658 is a wasteful number, since it uses less digits than its factorization.

420874658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169556.

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 420874658 is about 20515.2299036594. The cubic root of 420874658 is about 749.4067355809.

The spelling of 420874658 in words is "four hundred twenty million, eight hundred seventy-four thousand, six hundred fifty-eight".