12532890 has 16 divisors (see below), whose sum is σ = 30079008. Its totient is φ = 3342096.

The previous prime is 12532873. The next prime is 12532931. The reversal of 12532890 is 9823521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 417763 = 12532890 / (1 + 2 + 5 + 3 + 2 + 8 + 9 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208852 + ... + 208911.

It is an arithmetic number, because the mean of its divisors is an integer number (1879938).

Almost surely, 2^12532890 is an apocalyptic number.

12532890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12532890 is an abundant number, since it is smaller than the sum of its proper divisors (17546118).

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

12532890 is a wasteful number, since it uses less digits than its factorization.

12532890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417773.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12532890 is about 3540.1821987011. The cubic root of 12532890 is about 232.2828125573.

The spelling of 12532890 in words is "twelve million, five hundred thirty-two thousand, eight hundred ninety".