10390656 has 32 divisors (see below), whose sum is σ = 27601200. Its totient is φ = 3463424.

The previous prime is 10390651. The next prime is 10390657. The reversal of 10390656 is 65609301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×10390656² = 215931464220672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10390651) 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, 13146 + ... + 13913.

Almost surely, 2^10390656 is an apocalyptic number.

10390656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10390656 is an abundant number, since it is smaller than the sum of its proper divisors (17210544).

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

10390656 is an equidigital number, since it uses as much as digits as its factorization.

10390656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27076 (or 27064 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 10390656 is about 3223.4540480671. The cubic root of 10390656 is about 218.2131853892.

Adding to 10390656 its reverse (65609301), we get a palindrome (75999957).

The spelling of 10390656 in words is "ten million, three hundred ninety thousand, six hundred fifty-six".