10278642 has 32 divisors (see below), whose sum is σ = 23747904. Its totient is φ = 2931200.

The previous prime is 10278641. The next prime is 10278649. The reversal of 10278642 is 24687201.

It is not an unprimeable number, because it can be changed into a prime (10278641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3459 + ... + 5702.

It is an arithmetic number, because the mean of its divisors is an integer number (742122).

Almost surely, 2^10278642 is an apocalyptic number.

10278642 is an abundant number, since it is smaller than the sum of its proper divisors (13469262).

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

10278642 is a wasteful number, since it uses less digits than its factorization.

10278642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194.

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

The square root of 10278642 is about 3206.0321271004. The cubic root of 10278642 is about 217.4262188641.

It can be divided in two parts, 1027 and 8642, that added together give a palindrome (9669).

The spelling of 10278642 in words is "ten million, two hundred seventy-eight thousand, six hundred forty-two".