2031144642 has 24 divisors (see below), whose sum is σ = 4401977580. Its totient is φ = 676869120.

The previous prime is 2031144629. The next prime is 2031144673. The reversal of 2031144642 is 2464411302.

It is a happy number.

2031144642 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 14 + 4 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1849946121 + 181198521 = 43011^2 + 13461^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67234 + ... + 92642.

Almost surely, 2^2031144642 is an apocalyptic number.

2031144642 is an abundant number, since it is smaller than the sum of its proper divisors (2370832938).

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

2031144642 is a wasteful number, since it uses less digits than its factorization.

2031144642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29858 (or 29855 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2031144642 is about 45068.2220860775. Note that the first 3 decimals coincide. The cubic root of 2031144642 is about 1266.4273580995.

Adding to 2031144642 its reverse (2464411302), we get a palindrome (4495555944).

The spelling of 2031144642 in words is "two billion, thirty-one million, one hundred forty-four thousand, six hundred forty-two".