424420642 has 8 divisors (see below), whose sum is σ = 637359516. Its totient is φ = 211967472.

The previous prime is 424420631. The next prime is 424420649. The reversal of 424420642 is 246024424.

It can be written as a sum of positive squares in 2 ways, for example, as 407272761 + 17147881 = 20181^2 + 4141^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 424420642.

It is not an unprimeable number, because it can be changed into a prime (424420649) by changing a digit.

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, 119233 + ... + 122740.

Almost surely, 2^424420642 is an apocalyptic number.

424420642 is a deficient number, since it is larger than the sum of its proper divisors (212938874).

424420642 is a wasteful number, since it uses less digits than its factorization.

424420642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242852.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 424420642 is about 20601.4718406234. The cubic root of 424420642 is about 751.5055045120.

The spelling of 424420642 in words is "four hundred twenty-four million, four hundred twenty thousand, six hundred forty-two".