10287618 has 64 divisors (see below), whose sum is σ = 24354432. Its totient is φ = 2862080.

The previous prime is 10287611. The next prime is 10287643. The reversal of 10287618 is 81678201.

It is a happy number.

It is a super-2 number, since 2×10287618² = 211670168227848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (10287611) 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 31 ways as a sum of consecutive naturals, for example, 59380 + ... + 59552.

It is an arithmetic number, because the mean of its divisors is an integer number (380538).

Almost surely, 2^10287618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10287618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12177216).

10287618 is an abundant number, since it is smaller than the sum of its proper divisors (14066814).

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

10287618 is a wasteful number, since it uses less digits than its factorization.

10287618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 10287618 is about 3207.4316828266. The cubic root of 10287618 is about 217.4894908385.

It can be divided in two parts, 1028 and 7618, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 10287618 in words is "ten million, two hundred eighty-seven thousand, six hundred eighteen".