445310140 has 48 divisors (see below), whose sum is σ = 1035425664. Its totient is φ = 159508800.

The previous prime is 445310119. The next prime is 445310141. The reversal of 445310140 is 41013544.

It is a super-2 number, since 2×445310140² = 396602241573639200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445310141) 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, 366 + ... + 29845.

It is an arithmetic number, because the mean of its divisors is an integer number (21571368).

Almost surely, 2^445310140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445310140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517712832).

445310140 is an abundant number, since it is smaller than the sum of its proper divisors (590115524).

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

445310140 is a wasteful number, since it uses less digits than its factorization.

445310140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30298 (or 30296 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 445310140 is about 21102.3728523595. The cubic root of 445310140 is about 763.6379940270.

Adding to 445310140 its reverse (41013544), we get a palindrome (486323684).

The spelling of 445310140 in words is "four hundred forty-five million, three hundred ten thousand, one hundred forty".