1445980 has 24 divisors (see below), whose sum is σ = 3060288. Its totient is φ = 573888.

The previous prime is 1445971. The next prime is 1445981. The reversal of 1445980 is 895441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3757 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (127512).

2^1445980 is an apocalyptic number.

1445980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445980 is an abundant number, since it is smaller than the sum of its proper divisors (1614308).

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

1445980 is a wasteful number, since it uses less digits than its factorization.

1445980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1445980 is about 1202.4890851895. The cubic root of 1445980 is about 113.0804241213.

It can be divided in two parts, 1445 and 980, that multiplied together give a square (1416100 = 1190²).

The spelling of 1445980 in words is "one million, four hundred forty-five thousand, nine hundred eighty".