420242668 has 6 divisors (see below), whose sum is σ = 735424676. Its totient is φ = 210121332.

The previous prime is 420242657. The next prime is 420242687. The reversal of 420242668 is 866242024.

It is an unprimeable number.

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, 52530330 + ... + 52530337.

Almost surely, 2^420242668 is an apocalyptic number.

It is an amenable number.

420242668 is a deficient number, since it is larger than the sum of its proper divisors (315182008).

420242668 is a wasteful number, since it uses less digits than its factorization.

420242668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105060671 (or 105060669 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 420242668 is about 20499.8211699517. The cubic root of 420242668 is about 749.0314418801.

The spelling of 420242668 in words is "four hundred twenty million, two hundred forty-two thousand, six hundred sixty-eight".