12690650 has 48 divisors (see below), whose sum is σ = 27319680. Its totient is φ = 4296000.

The previous prime is 12690649. The next prime is 12690673. The reversal of 12690650 is 5609621.

It is a super-2 number, since 2×12690650² = 322105194845000, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 35171 + ... + 35529.

It is an arithmetic number, because the mean of its divisors is an integer number (569160).

Almost surely, 2^12690650 is an apocalyptic number.

12690650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12690650 is an abundant number, since it is smaller than the sum of its proper divisors (14629030).

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

12690650 is a wasteful number, since it uses less digits than its factorization.

12690650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 12690650 is about 3562.3938580679. The cubic root of 12690650 is about 233.2533853086.

The spelling of 12690650 in words is "twelve million, six hundred ninety thousand, six hundred fifty".