445212102 has 16 divisors (see below), whose sum is σ = 891393840. Its totient is φ = 148242432.

The previous prime is 445212101. The next prime is 445212109. The reversal of 445212102 is 201212544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445212101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34363 + ... + 45510.

It is an arithmetic number, because the mean of its divisors is an integer number (55712115).

Almost surely, 2^445212102 is an apocalyptic number.

445212102 is an abundant number, since it is smaller than the sum of its proper divisors (446181738).

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

445212102 is a wasteful number, since it uses less digits than its factorization.

445212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80807.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 445212102 is about 21100.0498103677. The cubic root of 445212102 is about 763.5819499132.

Adding to 445212102 its reverse (201212544), we get a palindrome (646424646).

The spelling of 445212102 in words is "four hundred forty-five million, two hundred twelve thousand, one hundred two".