445210090 has 32 divisors (see below), whose sum is σ = 908449920. Its totient is φ = 155732544.

The previous prime is 445210079. The next prime is 445210097. The reversal of 445210090 is 90012544.

It is not an unprimeable number, because it can be changed into a prime (445210097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87654 + ... + 92593.

It is an arithmetic number, because the mean of its divisors is an integer number (28389060).

Almost surely, 2^445210090 is an apocalyptic number.

445210090 is an abundant number, since it is smaller than the sum of its proper divisors (463239830).

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

445210090 is a wasteful number, since it uses less digits than its factorization.

445210090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180286.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 445210090 is about 21100.0021327013. The cubic root of 445210090 is about 763.5807996531.

The spelling of 445210090 in words is "four hundred forty-five million, two hundred ten thousand, ninety".