276816690 has 40 divisors (see below), whose sum is σ = 744331500. Its totient is φ = 73817568.

The previous prime is 276816689. The next prime is 276816691. The reversal of 276816690 is 96618672.

It is an interprime number because it is at equal distance from previous prime (276816689) and next prime (276816691).

It can be written as a sum of positive squares in 2 ways, for example, as 262731681 + 14085009 = 16209^2 + 3753^2 .

It is a super-2 number, since 2×276816690² = 153254959725112200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (276816691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 170065 + ... + 171684.

Almost surely, 2^276816690 is an apocalyptic number.

276816690 is an abundant number, since it is smaller than the sum of its proper divisors (467514810).

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

276816690 is a wasteful number, since it uses less digits than its factorization.

276816690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341768 (or 341759 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 276816690 is about 16637.8090504730. The cubic root of 276816690 is about 651.7245643649.

The spelling of 276816690 in words is "two hundred seventy-six million, eight hundred sixteen thousand, six hundred ninety".