103640022 has 48 divisors (see below), whose sum is σ = 239952960. Its totient is φ = 32232816.

The previous prime is 103639999. The next prime is 103640023. The reversal of 103640022 is 220046301.

It is a happy number.

103640022 is a `hidden beast` number, since 1 + 0 + 3 + 640 + 0 + 22 = 666.

It is a super-3 number, since 3×103640022³ (a number of 25 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 103639977 and 103640004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103640023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20653 + ... + 25175.

It is an arithmetic number, because the mean of its divisors is an integer number (4999020).

Almost surely, 2^103640022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103640022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119976480).

103640022 is an abundant number, since it is smaller than the sum of its proper divisors (136312938).

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

103640022 is a wasteful number, since it uses less digits than its factorization.

103640022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617 (or 4614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103640022 is about 10180.3743546100. The cubic root of 103640022 is about 469.7237277817.

Adding to 103640022 its reverse (220046301), we get a palindrome (323686323).

The spelling of 103640022 in words is "one hundred three million, six hundred forty thousand, twenty-two".