12592890 has 24 divisors (see below), whose sum is σ = 32741748. Its totient is φ = 3358080.

The previous prime is 12592889. The next prime is 12592907. The reversal of 12592890 is 9829521.

It can be written as a sum of positive squares in 2 ways, for example, as 10093329 + 2499561 = 3177^2 + 1581^2 .

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 69871 + ... + 70050.

Almost surely, 2^12592890 is an apocalyptic number.

12592890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12592890 is an abundant number, since it is smaller than the sum of its proper divisors (20148858).

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

12592890 is a wasteful number, since it uses less digits than its factorization.

12592890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139934 (or 139931 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 12592890 is about 3548.6462207439. The cubic root of 12592890 is about 232.6528997728.

The spelling of 12592890 in words is "twelve million, five hundred ninety-two thousand, eight hundred ninety".