2252144772 has 36 divisors (see below), whose sum is σ = 5696885376. Its totient is φ = 750192240.

The previous prime is 2252144771. The next prime is 2252144773. The reversal of 2252144772 is 2774412522.

2252144772 is a `hidden beast` number, since 22 + 521 + 4 + 47 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (2252144771) and next prime (2252144773).

It is a tau number, because it is divible by the number of its divisors (36).

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 (2252144771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32497 + ... + 74567.

It is an arithmetic number, because the mean of its divisors is an integer number (158246816).

Almost surely, 2^2252144772 is an apocalyptic number.

It is an amenable number.

2252144772 is an abundant number, since it is smaller than the sum of its proper divisors (3444740604).

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

2252144772 is a wasteful number, since it uses less digits than its factorization.

2252144772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43568 (or 43563 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 2252144772 is about 47456.7673993920. The cubic root of 2252144772 is about 1310.7869273046.

The spelling of 2252144772 in words is "two billion, two hundred fifty-two million, one hundred forty-four thousand, seven hundred seventy-two".