445479424 has 160 divisors (see below), whose sum is σ = 1055932416. Its totient is φ = 185794560.

The previous prime is 445479421. The next prime is 445479427. The reversal of 445479424 is 424974544.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (445479421) and next prime (445479427).

It is not an unprimeable number, because it can be changed into a prime (445479421) 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, 3507649 + ... + 3507775.

Almost surely, 2^445479424 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 445479424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527966208).

445479424 is an abundant number, since it is smaller than the sum of its proper divisors (610452992).

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

445479424 is a wasteful number, since it uses less digits than its factorization.

445479424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 190 counting only the distinct ones).

The product of its digits is 645120, while the sum is 43.

The square root of 445479424 is about 21106.3834893617. The cubic root of 445479424 is about 763.7347470576.

The spelling of 445479424 in words is "four hundred forty-five million, four hundred seventy-nine thousand, four hundred twenty-four".