2040431515 has 16 divisors (see below), whose sum is σ = 2495266560. Its totient is φ = 1601296480.

The previous prime is 2040431507. The next prime is 2040431521. The reversal of 2040431515 is 5151340402.

It is a happy number.

It is not a de Polignac number, because 2040431515 - 2³ = 2040431507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2040431515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137802 + ... + 151888.

It is an arithmetic number, because the mean of its divisors is an integer number (155954160).

Almost surely, 2^2040431515 is an apocalyptic number.

2040431515 is a deficient number, since it is larger than the sum of its proper divisors (454835045).

2040431515 is a wasteful number, since it uses less digits than its factorization.

2040431515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14642.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2040431515 is about 45171.1358612997. The cubic root of 2040431515 is about 1268.3545588628.

Adding to 2040431515 its reverse (5151340402), we get a palindrome (7191771917).

The spelling of 2040431515 in words is "two billion, forty million, four hundred thirty-one thousand, five hundred fifteen".