10642388 has 6 divisors (see below), whose sum is σ = 18624186. Its totient is φ = 5321192.

The previous prime is 10642381. The next prime is 10642397. The reversal of 10642388 is 88324601.

It can be written as a sum of positive squares in only one way, i.e., 7300804 + 3341584 = 2702^2 + 1828^2 .

It is a super-2 number, since 2×10642388² = 226520844685088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642381) 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 as a sum of consecutive naturals, namely, 1330295 + ... + 1330302.

It is an arithmetic number, because the mean of its divisors is an integer number (3104031).

Almost surely, 2^10642388 is an apocalyptic number.

It is an amenable number.

10642388 is a deficient number, since it is larger than the sum of its proper divisors (7981798).

10642388 is a wasteful number, since it uses less digits than its factorization.

10642388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660601 (or 2660599 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 10642388 is about 3262.2673097096. The cubic root of 10642388 is about 219.9613430701.

Adding to 10642388 its reverse (88324601), we get a palindrome (98966989).

The spelling of 10642388 in words is "ten million, six hundred forty-two thousand, three hundred eighty-eight".