10638770 has 16 divisors (see below), whose sum is σ = 20276568. Its totient is φ = 4005120.

The previous prime is 10638769. The next prime is 10638773. The reversal of 10638770 is 7783601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10621081 + 17689 = 3259^2 + 133^2 .

It is a super-2 number, since 2×10638770² = 226366854225800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10638773) by changing a digit.

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, 31121 + ... + 31460.

Almost surely, 2^10638770 is an apocalyptic number.

10638770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10638770 is a deficient number, since it is larger than the sum of its proper divisors (9637798).

10638770 is a wasteful number, since it uses less digits than its factorization.

10638770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62605.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 10638770 is about 3261.7127402639. The cubic root of 10638770 is about 219.9364141306.

The spelling of 10638770 in words is "ten million, six hundred thirty-eight thousand, seven hundred seventy".