2273527638 has 24 divisors (see below), whose sum is σ = 4950738000. Its totient is φ = 754033104.

The previous prime is 2273527609. The next prime is 2273527639. The reversal of 2273527638 is 8367253722.

2273527638 is a `hidden beast` number, since 2 + 2 + 7 + 3 + 5 + 2 + 7 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2273527593 and 2273527602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273527639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313773 + ... + 320936.

It is an arithmetic number, because the mean of its divisors is an integer number (206280750).

Almost surely, 2^2273527638 is an apocalyptic number.

2273527638 is an abundant number, since it is smaller than the sum of its proper divisors (2677210362).

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

2273527638 is a wasteful number, since it uses less digits than its factorization.

2273527638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634916 (or 634913 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 2273527638 is about 47681.5230251719. The cubic root of 2273527638 is about 1314.9222655934.

The spelling of 2273527638 in words is "two billion, two hundred seventy-three million, five hundred twenty-seven thousand, six hundred thirty-eight".