276269238 has 128 divisors (see below), whose sum is σ = 750182400. Its totient is φ = 73646496.

The previous prime is 276269237. The next prime is 276269249. The reversal of 276269238 is 832962672.

It is a junction number, because it is equal to n+sod(n) for n = 276269193 and 276269202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276269237) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 373473 + ... + 374211.

It is an arithmetic number, because the mean of its divisors is an integer number (5860800).

Almost surely, 2^276269238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276269238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375091200).

276269238 is an abundant number, since it is smaller than the sum of its proper divisors (473913162).

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

276269238 is a wasteful number, since it uses less digits than its factorization.

276269238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 817 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 276269238 is about 16621.3488622314. The cubic root of 276269238 is about 651.2946488399.

It can be divided in two parts, 27626 and 9238, that added together give a square (36864 = 192²).

The spelling of 276269238 in words is "two hundred seventy-six million, two hundred sixty-nine thousand, two hundred thirty-eight".