2031893442 has 24 divisors (see below), whose sum is σ = 4405933116. Its totient is φ = 676759776.

The previous prime is 2031893429. The next prime is 2031893449. The reversal of 2031893442 is 2443981302.

2031893442 is a `hidden beast` number, since 203 + 1 + 8 + 9 + 3 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2028511521 + 3381921 = 45039^2 + 1839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2031893397 and 2031893406.

It is not an unprimeable number, because it can be changed into a prime (2031893449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21213 + ... + 67184.

Almost surely, 2^2031893442 is an apocalyptic number.

2031893442 is an abundant number, since it is smaller than the sum of its proper divisors (2374039674).

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

2031893442 is a wasteful number, since it uses less digits than its factorization.

2031893442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89682 (or 89679 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2031893442 is about 45076.5287261564. The cubic root of 2031893442 is about 1266.5829656449.

The spelling of 2031893442 in words is "two billion, thirty-one million, eight hundred ninety-three thousand, four hundred forty-two".