2231191732 has 48 divisors (see below), whose sum is σ = 4874139648. Its totient is φ = 868209120.

The previous prime is 2231191663. The next prime is 2231191733. The reversal of 2231191732 is 2371911322.

It is a super-3 number, since 3×2231191732³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231191694 and 2231191703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231191733) 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, 269113 + ... + 277279.

It is an arithmetic number, because the mean of its divisors is an integer number (101544576).

Almost surely, 2^2231191732 is an apocalyptic number.

2231191732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2231191732 is an abundant number, since it is smaller than the sum of its proper divisors (2642947916).

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

2231191732 is a wasteful number, since it uses less digits than its factorization.

2231191732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9076 (or 9074 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 2231191732 is about 47235.4922912845. The cubic root of 2231191732 is about 1306.7092456566.

The spelling of 2231191732 in words is "two billion, two hundred thirty-one million, one hundred ninety-one thousand, seven hundred thirty-two".