40235215332220 has 24 divisors (see below), whose sum is σ = 86554780301808. Its totient is φ = 15701547446400.

The previous prime is 40235215332167. The next prime is 40235215332253. The reversal of 40235215332220 is 2223351253204.

It is a super-2 number, since 2×40235215332220² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24533667066 + ... + 24533668705.

It is an arithmetic number, because the mean of its divisors is an integer number (3606449179242).

Almost surely, 2^{40235215332220} is an apocalyptic number.

It is an amenable number.

40235215332220 is an abundant number, since it is smaller than the sum of its proper divisors (46319564969588).

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

40235215332220 is a wasteful number, since it uses less digits than its factorization.

40235215332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49067335821 (or 49067335819 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 40235215332220 its reverse (2223351253204), we get a palindrome (42458566585424).

The spelling of 40235215332220 in words is "forty trillion, two hundred thirty-five billion, two hundred fifteen million, three hundred thirty-two thousand, two hundred twenty".