420042682 has 8 divisors (see below), whose sum is σ = 630585396. Its totient is φ = 209847552.

The previous prime is 420042677. The next prime is 420042697. The reversal of 420042682 is 286240024.

It can be written as a sum of positive squares in 2 ways, for example, as 403648281 + 16394401 = 20091^2 + 4049^2 .

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 420042682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83853 + ... + 88720.

Almost surely, 2^420042682 is an apocalyptic number.

420042682 is a deficient number, since it is larger than the sum of its proper divisors (210542714).

420042682 is a wasteful number, since it uses less digits than its factorization.

420042682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173792.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 420042682 is about 20494.9428396373. The cubic root of 420042682 is about 748.9126061206.

The spelling of 420042682 in words is "four hundred twenty million, forty-two thousand, six hundred eighty-two".