442068336 has 60 divisors (see below), whose sum is σ = 1260542088. Its totient is φ = 144573312.

The previous prime is 442068329. The next prime is 442068343. The reversal of 442068336 is 633860244.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (442068329) and next prime (442068343).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 442068336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21330 + ... + 36593.

Almost surely, 2^442068336 is an apocalyptic number.

It is an amenable number.

442068336 is an abundant number, since it is smaller than the sum of its proper divisors (818473752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442068336 is a wasteful number, since it uses less digits than its factorization.

442068336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57990 (or 57981 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 442068336 is about 21025.4211848419. The cubic root of 442068336 is about 761.7804149560.

The spelling of 442068336 in words is "four hundred forty-two million, sixty-eight thousand, three hundred thirty-six".