103660644 has 24 divisors (see below), whose sum is σ = 242077248. Its totient is φ = 34524640.

The previous prime is 103660603. The next prime is 103660649. The reversal of 103660644 is 446066301.

It is a super-2 number, since 2×103660644² = 21491058228989472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103660649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15274 + ... + 20990.

It is an arithmetic number, because the mean of its divisors is an integer number (10086552).

Almost surely, 2^103660644 is an apocalyptic number.

It is an amenable number.

103660644 is an abundant number, since it is smaller than the sum of its proper divisors (138416604).

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

103660644 is a wasteful number, since it uses less digits than its factorization.

103660644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7235 (or 7233 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 103660644 is about 10181.3871353564. The cubic root of 103660644 is about 469.7548804842.

The spelling of 103660644 in words is "one hundred three million, six hundred sixty thousand, six hundred forty-four".