2009380 has 12 divisors (see below), whose sum is σ = 4219740. Its totient is φ = 803744.

The previous prime is 2009377. The next prime is 2009387. The reversal of 2009380 is 839002.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 682276 = 1152^2 + 826^2 .

It is not an unprimeable number, because it can be changed into a prime (2009387) 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, 50215 + ... + 50254.

It is an arithmetic number, because the mean of its divisors is an integer number (351645).

2^2009380 is an apocalyptic number.

2009380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2009380 is an abundant number, since it is smaller than the sum of its proper divisors (2210360).

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

2009380 is a wasteful number, since it uses less digits than its factorization.

2009380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100478 (or 100476 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2009380 is about 1417.5260138706. The cubic root of 2009380 is about 126.1887655207.

The spelling of 2009380 in words is "two million, nine thousand, three hundred eighty".