40230220 has 48 divisors (see below), whose sum is σ = 92816640. Its totient is φ = 14579136.

The previous prime is 40230191. The next prime is 40230247. The reversal of 40230220 is 2203204.

It is a self number, because there is not a number n which added to its sum of digits gives 40230220.

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, 6439 + ... + 11041.

It is an arithmetic number, because the mean of its divisors is an integer number (1933680).

Almost surely, 2^40230220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46408320).

40230220 is an abundant number, since it is smaller than the sum of its proper divisors (52586420).

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

40230220 is a wasteful number, since it uses less digits than its factorization.

40230220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654 (or 4652 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40230220 is about 6342.7296962743. The cubic root of 40230220 is about 342.6500523536.

Adding to 40230220 its reverse (2203204), we get a palindrome (42433424).

The spelling of 40230220 in words is "forty million, two hundred thirty thousand, two hundred twenty".