40220343312 has 40 divisors (see below), whose sum is σ = 104044394304. Its totient is φ = 13388479104.

The previous prime is 40220343269. The next prime is 40220343329. The reversal of 40220343312 is 21334302204.

It is a super-2 number, since 2×40220343312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536388 + ... + 606755.

Almost surely, 2^40220343312 is an apocalyptic number.

It is an amenable number.

40220343312 is an abundant number, since it is smaller than the sum of its proper divisors (63824050992).

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

40220343312 is a wasteful number, since it uses less digits than its factorization.

40220343312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143887 (or 1143881 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 40220343312 its reverse (21334302204), we get a palindrome (61554645516).

The spelling of 40220343312 in words is "forty billion, two hundred twenty million, three hundred forty-three thousand, three hundred twelve".