4447156140 has 288 divisors, whose sum is σ = 16424239104. Its totient is φ = 950814720.

The previous prime is 4447156117. The next prime is 4447156141. The reversal of 4447156140 is 416517444.

It is a happy number.

4447156140 is a `hidden beast` number, since 44 + 471 + 5 + 6 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4447156095 and 4447156104.

It is not an unprimeable number, because it can be changed into a prime (4447156141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4090677 + ... + 4091763.

It is an arithmetic number, because the mean of its divisors is an integer number (57028608).

Almost surely, 2^4447156140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4447156140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8212119552).

4447156140 is an abundant number, since it is smaller than the sum of its proper divisors (11977082964).

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

4447156140 is a wasteful number, since it uses less digits than its factorization.

4447156140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 4447156140 is about 66687.0012821089. The cubic root of 4447156140 is about 1644.4756957206.

The spelling of 4447156140 in words is "four billion, four hundred forty-seven million, one hundred fifty-six thousand, one hundred forty".