2031642 has 20 divisors (see below), whose sum is σ = 4552746. Its totient is φ = 677160.

The previous prime is 2031611. The next prime is 2031671. The reversal of 2031642 is 2461302.

It is a happy number.

2031642 is a `hidden beast` number, since 20 + 3 + 1 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1390041 + 641601 = 1179^2 + 801^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6109 + ... + 6432.

2^2031642 is an apocalyptic number.

2031642 is an abundant number, since it is smaller than the sum of its proper divisors (2521104).

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

2031642 is a wasteful number, since it uses less digits than its factorization.

2031642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12555 (or 12546 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2031642 is about 1425.3567974370. The cubic root of 2031642 is about 126.6530717943.

Adding to 2031642 its reverse (2461302), we get a palindrome (4492944).

The spelling of 2031642 in words is "two million, thirty-one thousand, six hundred forty-two".