103640080 has 20 divisors (see below), whose sum is σ = 240963372. Its totient is φ = 41456000.

The previous prime is 103640077. The next prime is 103640081. The reversal of 103640080 is 80046301.

It can be written as a sum of positive squares in 2 ways, for example, as 50466816 + 53173264 = 7104^2 + 7292^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×103640080³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (103640081) 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 3 ways as a sum of consecutive naturals, for example, 647671 + ... + 647830.

Almost surely, 2^103640080 is an apocalyptic number.

103640080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103640080 is an abundant number, since it is smaller than the sum of its proper divisors (137323292).

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

103640080 is a wasteful number, since it uses less digits than its factorization.

103640080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295514 (or 1295508 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 103640080 is about 10180.3772032278. The cubic root of 103640080 is about 469.7238154054.

Adding to 103640080 its reverse (80046301), we get a palindrome (183686381).

The spelling of 103640080 in words is "one hundred three million, six hundred forty thousand, eighty".