40103220 has 48 divisors (see below), whose sum is σ = 114686208. Its totient is φ = 10465920.

The previous prime is 40103179. The next prime is 40103233. The reversal of 40103220 is 2230104.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 40103196 and 40103205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4291 + ... + 9930.

It is an arithmetic number, because the mean of its divisors is an integer number (2389296).

Almost surely, 2^40103220 is an apocalyptic number.

It is an amenable number.

40103220 is an abundant number, since it is smaller than the sum of its proper divisors (74582988).

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

40103220 is a wasteful number, since it uses less digits than its factorization.

40103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280 (or 14278 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40103220 is about 6332.7103202341. The cubic root of 40103220 is about 342.2891095218.

Adding to 40103220 its reverse (2230104), we get a palindrome (42333324).

The spelling of 40103220 in words is "forty million, one hundred three thousand, two hundred twenty".