10209380 has 24 divisors (see below), whose sum is σ = 21505848. Its totient is φ = 4071168.

The previous prime is 10209379. The next prime is 10209427. The reversal of 10209380 is 8390201.

It can be written as a sum of positive squares in 4 ways, for example, as 574564 + 9634816 = 758^2 + 3104^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8582 + ... + 9698.

It is an arithmetic number, because the mean of its divisors is an integer number (896077).

Almost surely, 2^10209380 is an apocalyptic number.

10209380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10209380 is an abundant number, since it is smaller than the sum of its proper divisors (11296468).

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

10209380 is a wasteful number, since it uses less digits than its factorization.

10209380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1581 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 10209380 is about 3195.2120430419. The cubic root of 10209380 is about 216.9367466968.

Adding to 10209380 its reverse (8390201), we get a palindrome (18599581).

The spelling of 10209380 in words is "ten million, two hundred nine thousand, three hundred eighty".