40207221530 has 16 divisors (see below), whose sum is σ = 82711998720. Its totient is φ = 13785333072.

The previous prime is 40207221521. The next prime is 40207221533. The reversal of 40207221530 is 3512270204.

It is a self number, because there is not a number n which added to its sum of digits gives 40207221530.

It is not an unprimeable number, because it can be changed into a prime (40207221533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287194370 + ... + 287194509.

It is an arithmetic number, because the mean of its divisors is an integer number (5169499920).

Almost surely, 2^40207221530 is an apocalyptic number.

40207221530 is an abundant number, since it is smaller than the sum of its proper divisors (42504777190).

40207221530 is a wasteful number, since it uses less digits than its factorization.

40207221530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574388893.

The product of its (nonzero) digits is 3360, while the sum is 26.

Adding to 40207221530 its reverse (3512270204), we get a palindrome (43719491734).

The spelling of 40207221530 in words is "forty billion, two hundred seven million, two hundred twenty-one thousand, five hundred thirty".