2147265988 has 48 divisors (see below), whose sum is σ = 4572457344. Its totient is φ = 861304320.

The previous prime is 2147265983. The next prime is 2147265997. The reversal of 2147265988 is 8895627412.

It is a super-2 number, since 2×2147265988² = 9221502446443232288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2147265983) 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, 73695 + ... + 98617.

It is an arithmetic number, because the mean of its divisors is an integer number (95259528).

Almost surely, 2^2147265988 is an apocalyptic number.

2147265988 is a gapful number since it is divisible by the number (28) 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 2147265988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2286228672).

2147265988 is an abundant number, since it is smaller than the sum of its proper divisors (2425191356).

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

2147265988 is a wasteful number, since it uses less digits than its factorization.

2147265988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25132 (or 25130 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 2147265988 is about 46338.6014894710. The cubic root of 2147265988 is about 1290.1155652331.

The spelling of 2147265988 in words is "two billion, one hundred forty-seven million, two hundred sixty-five thousand, nine hundred eighty-eight".