440778865156 has 36 divisors (see below), whose sum is σ = 897342394368. Its totient is φ = 188896267728.

The previous prime is 440778865117. The next prime is 440778865207. The reversal of 440778865156 is 651568877044.

It is a super-2 number, since 2×440778865156² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440778865094 and 440778865103.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5630821 + ... + 5708563.

Almost surely, 2^440778865156 is an apocalyptic number.

It is an amenable number.

440778865156 is an abundant number, since it is smaller than the sum of its proper divisors (456563529212).

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

440778865156 is a wasteful number, since it uses less digits than its factorization.

440778865156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106688 (or 106679 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 61.

The spelling of 440778865156 in words is "four hundred forty billion, seven hundred seventy-eight million, eight hundred sixty-five thousand, one hundred fifty-six".