445512223400 has 24 divisors (see below), whose sum is σ = 1035815919870. Its totient is φ = 178204889280.

The previous prime is 445512223399. The next prime is 445512223423. The reversal of 445512223400 is 4322215544.

It can be written as a sum of positive squares in 3 ways, for example, as 374414267236 + 71097956164 = 611894^2 + 266642^2 .

It is a super-2 number, since 2×445512223400² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1113780359 + ... + 1113780758.

Almost surely, 2^445512223400 is an apocalyptic number.

445512223400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445512223400 is an abundant number, since it is smaller than the sum of its proper divisors (590303696470).

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

445512223400 is a wasteful number, since it uses less digits than its factorization.

445512223400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227561133 (or 2227561124 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 445512223400 its reverse (4322215544), we get a palindrome (449834438944).

The spelling of 445512223400 in words is "four hundred forty-five billion, five hundred twelve million, two hundred twenty-three thousand, four hundred".