2250393778 has 8 divisors (see below), whose sum is σ = 3386240172. Its totient is φ = 1121647056.

The previous prime is 2250393713. The next prime is 2250393781. The reversal of 2250393778 is 8773930522.

It can be written as a sum of positive squares in 2 ways, for example, as 2246096449 + 4297329 = 47393^2 + 2073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2250393778² = 10128544312122226568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774125 + ... + 1775392.

Almost surely, 2^2250393778 is an apocalyptic number.

2250393778 is a deficient number, since it is larger than the sum of its proper divisors (1135846394).

2250393778 is a wasteful number, since it uses less digits than its factorization.

2250393778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549836.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 2250393778 is about 47438.3155055067. The cubic root of 2250393778 is about 1310.4471363716.

It can be divided in two parts, 22503 and 93778, that added together give a square (116281 = 341²).

The spelling of 2250393778 in words is "two billion, two hundred fifty million, three hundred ninety-three thousand, seven hundred seventy-eight".