10305018 has 24 divisors (see below), whose sum is σ = 22932468. Its totient is φ = 3341952.

The previous prime is 10305017. The next prime is 10305059. The reversal of 10305018 is 81050301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9941409 + 363609 = 3153^2 + 603^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10305013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7071 + ... + 8402.

Almost surely, 2^10305018 is an apocalyptic number.

10305018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10305018 is an abundant number, since it is smaller than the sum of its proper divisors (12627450).

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

10305018 is a wasteful number, since it uses less digits than its factorization.

10305018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15518 (or 15515 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 10305018 is about 3210.1429874696. The cubic root of 10305018 is about 217.6120389866.

Adding to 10305018 its reverse (81050301), we get a palindrome (91355319).

The spelling of 10305018 in words is "ten million, three hundred five thousand, eighteen".