2040450399 has 24 divisors (see below), whose sum is σ = 3273313680. Its totient is φ = 1255658976.

The previous prime is 2040450397. The next prime is 2040450409. The reversal of 2040450399 is 9930540402.

2040450399 is a `hidden beast` number, since 20 + 40 + 4 + 503 + 99 = 666.

It is not a de Polignac number, because 2040450399 - 2¹ = 2040450397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040450397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219024 + ... + 228149.

It is an arithmetic number, because the mean of its divisors is an integer number (136388070).

Almost surely, 2^2040450399 is an apocalyptic number.

2040450399 is a deficient number, since it is larger than the sum of its proper divisors (1232863281).

2040450399 is a wasteful number, since it uses less digits than its factorization.

2040450399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447208 (or 447189 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2040450399 is about 45171.3448881036. The cubic root of 2040450399 is about 1268.3584716844.

The spelling of 2040450399 in words is "two billion, forty million, four hundred fifty thousand, three hundred ninety-nine".