945380 has 12 divisors (see below), whose sum is σ = 1985340. Its totient is φ = 378144.

The previous prime is 945377. The next prime is 945389. The reversal of 945380 is 83549.

It can be written as a sum of positive squares in 2 ways, for example, as 128164 + 817216 = 358^2 + 904^2 .

It is not an unprimeable number, because it can be changed into a prime (945389) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23615 + ... + 23654.

It is an arithmetic number, because the mean of its divisors is an integer number (165445).

2⁹⁴⁵³⁸⁰ is an apocalyptic number.

It is an amenable number.

945380 is an abundant number, since it is smaller than the sum of its proper divisors (1039960).

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

945380 is a wasteful number, since it uses less digits than its factorization.

945380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47278 (or 47276 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 945380 is about 972.3065360266. The cubic root of 945380 is about 98.1451410371.

The spelling of 945380 in words is "nine hundred forty-five thousand, three hundred eighty".