445416 has 32 divisors (see below), whose sum is σ = 1134240. Its totient is φ = 145728.

The previous prime is 445363. The next prime is 445427. The reversal of 445416 is 614544.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

445416 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470 + ... + 1746.

It is an arithmetic number, because the mean of its divisors is an integer number (35445).

2⁴⁴⁵⁴¹⁶ is an apocalyptic number.

It is an amenable number.

445416 is an abundant number, since it is smaller than the sum of its proper divisors (688824).

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

445416 is a wasteful number, since it uses less digits than its factorization.

445416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 349 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 445416 is about 667.3949355517. The cubic root of 445416 is about 76.3698500407.

It can be divided in two parts, 445 and 416, that added together give a triangular number (861 = T₄₁).

The spelling of 445416 in words is "four hundred forty-five thousand, four hundred sixteen".