2040040424 has 8 divisors (see below), whose sum is σ = 3825075810. Its totient is φ = 1020020208.

The previous prime is 2040040423. The next prime is 2040040427. The reversal of 2040040424 is 4240400402.

It can be written as a sum of positive squares in only one way, i.e., 1774936900 + 265103524 = 42130^2 + 16282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2040040396 and 2040040405.

It is not an unprimeable number, because it can be changed into a prime (2040040421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127502519 + ... + 127502534.

Almost surely, 2^2040040424 is an apocalyptic number.

It is an amenable number.

2040040424 is a deficient number, since it is larger than the sum of its proper divisors (1785035386).

2040040424 is a wasteful number, since it uses less digits than its factorization.

2040040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255005059 (or 255005055 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2040040424 is about 45166.8066615297. The cubic root of 2040040424 is about 1268.2735182030.

Adding to 2040040424 its reverse (4240400402), we get a palindrome (6280440826).

The spelling of 2040040424 in words is "two billion, forty million, forty thousand, four hundred twenty-four".