10642645 has 8 divisors (see below), whose sum is σ = 13753656. Its totient is φ = 7859136.

The previous prime is 10642637. The next prime is 10642649. The reversal of 10642645 is 54624601.

It can be written as a sum of positive squares in 4 ways, for example, as 1168561 + 9474084 = 1081^2 + 3078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10642645 - 2³ = 10642637 is a prime.

It is a super-2 number, since 2×10642645² = 226531785192050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642649) 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, 81802 + ... + 81931.

It is an arithmetic number, because the mean of its divisors is an integer number (1719207).

Almost surely, 2^10642645 is an apocalyptic number.

It is an amenable number.

10642645 is a deficient number, since it is larger than the sum of its proper divisors (3111011).

10642645 is a wasteful number, since it uses less digits than its factorization.

10642645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163751.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 10642645 is about 3262.3066992544. The cubic root of 10642645 is about 219.9631136505.

The spelling of 10642645 in words is "ten million, six hundred forty-two thousand, six hundred forty-five".