445100 has 18 divisors (see below), whose sum is σ = 966084. Its totient is φ = 178000.

The previous prime is 445097. The next prime is 445103. The reversal of 445100 is 1544.

It is an interprime number because it is at equal distance from previous prime (445097) and next prime (445103).

It is a super-2 number, since 2×445100² = 396228020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (445103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2126 + ... + 2325.

2⁴⁴⁵¹⁰⁰ is an apocalyptic number.

It is an amenable number.

445100 is an abundant number, since it is smaller than the sum of its proper divisors (520984).

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

445100 is a wasteful number, since it uses less digits than its factorization.

445100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465 (or 4458 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 445100 is about 667.1581521648. The cubic root of 445100 is about 76.3517855931.

Adding to 445100 its reverse (1544), we get a palindrome (446644).

Subtracting from 445100 its reverse (1544), we obtain a square (443556 = 666²).

It can be divided in two parts, 445 and 100, that added together give a palindrome (545).

The spelling of 445100 in words is "four hundred forty-five thousand, one hundred".