426446642 has 8 divisors (see below), whose sum is σ = 643963500. Its totient is φ = 211792144.

The previous prime is 426446641. The next prime is 426446663. The reversal of 426446642 is 246644624.

It can be written as a sum of positive squares in 2 ways, for example, as 336025561 + 90421081 = 18331^2 + 9509^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 426446596 and 426446605.

It is not an unprimeable number, because it can be changed into a prime (426446641) 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, 715217 + ... + 715812.

Almost surely, 2^426446642 is an apocalyptic number.

426446642 is a deficient number, since it is larger than the sum of its proper divisors (217516858).

426446642 is a wasteful number, since it uses less digits than its factorization.

426446642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431180.

The product of its digits is 221184, while the sum is 38.

The square root of 426446642 is about 20650.5845437847. The cubic root of 426446642 is about 752.6993938925.

The spelling of 426446642 in words is "four hundred twenty-six million, four hundred forty-six thousand, six hundred forty-two".