424242890 has 8 divisors (see below), whose sum is σ = 763637220. Its totient is φ = 169697152.

The previous prime is 424242839. The next prime is 424242893. The reversal of 424242890 is 98242424.

It can be written as a sum of positive squares in 2 ways, for example, as 391604521 + 32638369 = 19789^2 + 5713^2 .

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 424242890.

It is not an unprimeable number, because it can be changed into a prime (424242893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21212135 + ... + 21212154.

Almost surely, 2^424242890 is an apocalyptic number.

424242890 is a deficient number, since it is larger than the sum of its proper divisors (339394330).

424242890 is a wasteful number, since it uses less digits than its factorization.

424242890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42424296.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 424242890 is about 20597.1573281363. The cubic root of 424242890 is about 751.4005769582.

The spelling of 424242890 in words is "four hundred twenty-four million, two hundred forty-two thousand, eight hundred ninety".