2049904395 has 256 divisors, whose sum is σ = 4877107200. Its totient is φ = 791285760.

The previous prime is 2049904393. The next prime is 2049904397. The reversal of 2049904395 is 5934099402.

It is a happy number.

2049904395 is a `hidden beast` number, since 204 + 9 + 9 + 0 + 439 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2049904393) and next prime (2049904397).

It is not a de Polignac number, because 2049904395 - 2¹ = 2049904393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2049904395.

It is not an unprimeable number, because it can be changed into a prime (2049904393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 19157932 + ... + 19158038.

It is an arithmetic number, because the mean of its divisors is an integer number (19051200).

Almost surely, 2^2049904395 is an apocalyptic number.

2049904395 is an abundant number, since it is smaller than the sum of its proper divisors (2827202805).

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

2049904395 is a wasteful number, since it uses less digits than its factorization.

2049904395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 2049904395 is about 45275.8698977723. The cubic root of 2049904395 is about 1270.3143444507.

The spelling of 2049904395 in words is "two billion, forty-nine million, nine hundred four thousand, three hundred ninety-five".