445235138 has 16 divisors (see below), whose sum is σ = 676793880. Its totient is φ = 219648000.

The previous prime is 445235123. The next prime is 445235149. The reversal of 445235138 is 831532544.

It can be written as a sum of positive squares in 4 ways, for example, as 290804809 + 154430329 = 17053^2 + 12427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 445235098 and 445235107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90338 + ... + 95138.

Almost surely, 2^445235138 is an apocalyptic number.

445235138 is a deficient number, since it is larger than the sum of its proper divisors (231558742).

445235138 is a wasteful number, since it uses less digits than its factorization.

445235138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413.

The product of its digits is 57600, while the sum is 35.

The square root of 445235138 is about 21100.5956787954. The cubic root of 445235138 is about 763.5951193444.

The spelling of 445235138 in words is "four hundred forty-five million, two hundred thirty-five thousand, one hundred thirty-eight".