446670642 has 64 divisors (see below), whose sum is σ = 1001839104. Its totient is φ = 131619840.

The previous prime is 446670641. The next prime is 446670643. The reversal of 446670642 is 246076644.

It is an interprime number because it is at equal distance from previous prime (446670641) and next prime (446670643).

It is a self number, because there is not a number n which added to its sum of digits gives 446670642.

It is not an unprimeable number, because it can be changed into a prime (446670641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366418 + ... + 367634.

It is an arithmetic number, because the mean of its divisors is an integer number (15653736).

Almost surely, 2^446670642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 446670642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500919552).

446670642 is an abundant number, since it is smaller than the sum of its proper divisors (555168462).

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

446670642 is a wasteful number, since it uses less digits than its factorization.

446670642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 446670642 is about 21134.5840271343. The cubic root of 446670642 is about 764.4148868612.

The spelling of 446670642 in words is "four hundred forty-six million, six hundred seventy thousand, six hundred forty-two".