2272129974 has 32 divisors (see below), whose sum is σ = 5058931680. Its totient is φ = 755913600.

The previous prime is 2272129973. The next prime is 2272129997. The reversal of 2272129974 is 4799212722.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272129973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12247 + ... + 68514.

It is an arithmetic number, because the mean of its divisors is an integer number (158091615).

Almost surely, 2^2272129974 is an apocalyptic number.

2272129974 is an abundant number, since it is smaller than the sum of its proper divisors (2786801706).

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

2272129974 is a wasteful number, since it uses less digits than its factorization.

2272129974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81293 (or 81287 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2272129974 is about 47666.8645287269. The cubic root of 2272129974 is about 1314.6527583873.

The spelling of 2272129974 in words is "two billion, two hundred seventy-two million, one hundred twenty-nine thousand, nine hundred seventy-four".