10644358 has 4 divisors (see below), whose sum is σ = 15966540. Its totient is φ = 5322178.

The previous prime is 10644341. The next prime is 10644371. The reversal of 10644358 is 85344601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10644358² = 226604714464328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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 as a sum of consecutive naturals, namely, 2661088 + ... + 2661091.

It is an arithmetic number, because the mean of its divisors is an integer number (3991635).

Almost surely, 2^10644358 is an apocalyptic number.

10644358 is a deficient number, since it is larger than the sum of its proper divisors (5322182).

10644358 is an equidigital number, since it uses as much as digits as its factorization.

10644358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322181.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 10644358 is about 3262.5692329819. The cubic root of 10644358 is about 219.9749144951.

Adding to 10644358 its reverse (85344601), we get a palindrome (95988959).

The spelling of 10644358 in words is "ten million, six hundred forty-four thousand, three hundred fifty-eight".