103642220 has 24 divisors (see below), whose sum is σ = 237435408. Its totient is φ = 37688000.

The previous prime is 103642213. The next prime is 103642237. The reversal of 103642220 is 22246301.

It is a super-3 number, since 3×103642220³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 103642192 and 103642201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235331 + ... + 235770.

It is an arithmetic number, because the mean of its divisors is an integer number (9893142).

Almost surely, 2^103642220 is an apocalyptic number.

103642220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103642220 is an abundant number, since it is smaller than the sum of its proper divisors (133793188).

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

103642220 is a wasteful number, since it uses less digits than its factorization.

103642220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471121 (or 471119 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 103642220 is about 10180.4823068458. The cubic root of 103642220 is about 469.7270483955.

Adding to 103642220 its reverse (22246301), we get a palindrome (125888521).

The spelling of 103642220 in words is "one hundred three million, six hundred forty-two thousand, two hundred twenty".