2231445639 has 8 divisors (see below), whose sum is σ = 2988368640. Its totient is φ = 1481076536.

The previous prime is 2231445607. The next prime is 2231445659. The reversal of 2231445639 is 9365441322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231445639 - 2⁵ = 2231445607 is a prime.

It is a super-3 number, since 3×2231445639³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231445597 and 2231445606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231445659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637679 + ... + 1639040.

It is an arithmetic number, because the mean of its divisors is an integer number (373546080).

Almost surely, 2^2231445639 is an apocalyptic number.

2231445639 is a deficient number, since it is larger than the sum of its proper divisors (756923001).

2231445639 is a wasteful number, since it uses less digits than its factorization.

2231445639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276949.

The product of its digits is 155520, while the sum is 39.

The square root of 2231445639 is about 47238.1798866129. The cubic root of 2231445639 is about 1306.7588111025.

The spelling of 2231445639 in words is "two billion, two hundred thirty-one million, four hundred forty-five thousand, six hundred thirty-nine".