10642278 has 8 divisors (see below), whose sum is σ = 21284568. Its totient is φ = 3547424.

The previous prime is 10642277. The next prime is 10642283. The reversal of 10642278 is 87224601.

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

10642278 is an admirable number.

It is a super-2 number, since 2×10642278² = 226516162058568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642271) 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 3 ways as a sum of consecutive naturals, for example, 886851 + ... + 886862.

It is an arithmetic number, because the mean of its divisors is an integer number (2660571).

Almost surely, 2^10642278 is an apocalyptic number.

10642278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10642278 is a wasteful number, since it uses less digits than its factorization.

10642278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773718.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 10642278 is about 3262.2504502260. The cubic root of 10642278 is about 219.9605852254.

Adding to 10642278 its reverse (87224601), we get a palindrome (97866879).

The spelling of 10642278 in words is "ten million, six hundred forty-two thousand, two hundred seventy-eight".