1445424 has 20 divisors (see below), whose sum is σ = 3734136. Its totient is φ = 481792.

The previous prime is 1445419. The next prime is 1445429. The reversal of 1445424 is 4245441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1445419) and next prime (1445429).

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

It is a junction number, because it is equal to n+sod(n) for n = 1445394 and 1445403.

It is not an unprimeable number, because it can be changed into a prime (1445429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15009 + ... + 15104.

2^1445424 is an apocalyptic number.

It is an amenable number.

1445424 is an abundant number, since it is smaller than the sum of its proper divisors (2288712).

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

1445424 is a wasteful number, since it uses less digits than its factorization.

1445424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30124 (or 30118 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 1445424 is about 1202.2578758320. The cubic root of 1445424 is about 113.0659285829.

The spelling of 1445424 in words is "one million, four hundred forty-five thousand, four hundred twenty-four".