40222644636 has 48 divisors (see below), whose sum is σ = 95664496928. Its totient is φ = 13150771200.

The previous prime is 40222644613. The next prime is 40222644641. The reversal of 40222644636 is 63644622204.

It is a super-2 number, since 2×40222644636² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40222644594 and 40222644603.

It is a congruent number.

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, 31716 + ... + 285396.

Almost surely, 2^40222644636 is an apocalyptic number.

It is an amenable number.

40222644636 is an abundant number, since it is smaller than the sum of its proper divisors (55441852292).

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

40222644636 is a wasteful number, since it uses less digits than its factorization.

40222644636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253942 (or 253940 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 39.

The spelling of 40222644636 in words is "forty billion, two hundred twenty-two million, six hundred forty-four thousand, six hundred thirty-six".