2231430642 has 96 divisors (see below), whose sum is σ = 6158505600. Its totient is φ = 568456704.

The previous prime is 2231430637. The next prime is 2231430701. The reversal of 2231430642 is 2460341322.

2231430642 is a `hidden beast` number, since 2 + 2 + 3 + 14 + 3 + 0 + 642 = 666.

It is a super-3 number, since 3×2231430642³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13284 + ... + 68112.

It is an arithmetic number, because the mean of its divisors is an integer number (64151100).

Almost surely, 2^2231430642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231430642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3079252800).

2231430642 is an abundant number, since it is smaller than the sum of its proper divisors (3927074958).

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

2231430642 is a wasteful number, since it uses less digits than its factorization.

2231430642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54880 (or 54877 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 2231430642 is about 47238.0211482234. The cubic root of 2231430642 is about 1306.7558836273.

Adding to 2231430642 its reverse (2460341322), we get a palindrome (4691771964).

The spelling of 2231430642 in words is "two billion, two hundred thirty-one million, four hundred thirty thousand, six hundred forty-two".