2263661738 has 8 divisors (see below), whose sum is σ = 3656684388. Its totient is φ = 1044766944.

The previous prime is 2263661731. The next prime is 2263661759. The reversal of 2263661738 is 8371663622.

It can be written as a sum of positive squares in 2 ways, for example, as 1805145169 + 458516569 = 42487^2 + 21413^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2263661731) 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 3 ways as a sum of consecutive naturals, for example, 43531931 + ... + 43531982.

Almost surely, 2^2263661738 is an apocalyptic number.

2263661738 is a deficient number, since it is larger than the sum of its proper divisors (1393022650).

2263661738 is a wasteful number, since it uses less digits than its factorization.

2263661738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87063928.

The product of its digits is 435456, while the sum is 44.

The square root of 2263661738 is about 47577.9543276085. The cubic root of 2263661738 is about 1313.0174867405.

The spelling of 2263661738 in words is "two billion, two hundred sixty-three million, six hundred sixty-one thousand, seven hundred thirty-eight".