4427201772 has 120 divisors (see below), whose sum is σ = 13246239776. Its totient is φ = 1263071232.

The previous prime is 4427201749. The next prime is 4427201773. The reversal of 4427201772 is 2771027244.

It is a happy number.

4427201772 is a `hidden beast` number, since 442 + 7 + 201 + 7 + 7 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (4427201773) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2614158 + ... + 2615850.

Almost surely, 2^4427201772 is an apocalyptic number.

4427201772 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4427201772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6623119888).

4427201772 is an abundant number, since it is smaller than the sum of its proper divisors (8819038004).

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

4427201772 is a wasteful number, since it uses less digits than its factorization.

4427201772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869 (or 2858 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 4427201772 is about 66537.2209518853. The cubic root of 4427201772 is about 1642.0124229881.

The spelling of 4427201772 in words is "four billion, four hundred twenty-seven million, two hundred one thousand, seven hundred seventy-two".