40030220 has 12 divisors (see below), whose sum is σ = 84063504. Its totient is φ = 16012080.

The previous prime is 40030219. The next prime is 40030231. The reversal of 40030220 is 2203004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000736 + ... + 1000775.

It is an arithmetic number, because the mean of its divisors is an integer number (7005292).

Almost surely, 2^40030220 is an apocalyptic number.

It is an amenable number.

40030220 is an abundant number, since it is smaller than the sum of its proper divisors (44033284).

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

40030220 is a wasteful number, since it uses less digits than its factorization.

40030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001520 (or 2001518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 40030220 is about 6326.9439700380. The cubic root of 40030220 is about 342.0812934436.

Adding to 40030220 its reverse (2203004), we get a palindrome (42233224).

The spelling of 40030220 in words is "forty million, thirty thousand, two hundred twenty".