10305540 has 72 divisors (see below), whose sum is σ = 35730240. Its totient is φ = 2355264.

The previous prime is 10305539. The next prime is 10305557. The reversal of 10305540 is 4550301.

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

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2830 + ... + 5349.

Almost surely, 2^10305540 is an apocalyptic number.

10305540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10305540 is an abundant number, since it is smaller than the sum of its proper divisors (25424700).

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

10305540 is a wasteful number, since it uses less digits than its factorization.

10305540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201 (or 8196 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 10305540 is about 3210.2242912295. The cubic root of 10305540 is about 217.6157132990.

Adding to 10305540 its reverse (4550301), we get a palindrome (14855841).

The spelling of 10305540 in words is "ten million, three hundred five thousand, five hundred forty".