276968378 has 4 divisors (see below), whose sum is σ = 415452570. Its totient is φ = 138484188.

The previous prime is 276968371. The next prime is 276968381. The reversal of 276968378 is 873869672.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 270832849 + 6135529 = 16457^2 + 2477^2 .

It is a super-2 number, since 2×276968378² = 153422964823901768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (276968371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69242093 + ... + 69242096.

Almost surely, 2^276968378 is an apocalyptic number.

276968378 is a deficient number, since it is larger than the sum of its proper divisors (138484192).

276968378 is a wasteful number, since it uses less digits than its factorization.

276968378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138484191.

The product of its digits is 6096384, while the sum is 56.

The square root of 276968378 is about 16642.3669590596. The cubic root of 276968378 is about 651.8435850592.

The spelling of 276968378 in words is "two hundred seventy-six million, nine hundred sixty-eight thousand, three hundred seventy-eight".