445171662 has 48 divisors (see below), whose sum is σ = 1051294608. Its totient is φ = 135319680.

The previous prime is 445171637. The next prime is 445171723. The reversal of 445171662 is 266171544.

It is a super-4 number, since 4×445171662⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7962 + ... + 30882.

It is an arithmetic number, because the mean of its divisors is an integer number (21901971).

Almost surely, 2^445171662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445171662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525647304).

445171662 is an abundant number, since it is smaller than the sum of its proper divisors (606122946).

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

445171662 is a wasteful number, since it uses less digits than its factorization.

445171662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23025 (or 23022 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 445171662 is about 21099.0914970290. The cubic root of 445171662 is about 763.5588297054.

The spelling of 445171662 in words is "four hundred forty-five million, one hundred seventy-one thousand, six hundred sixty-two".