276990246 has 96 divisors (see below), whose sum is σ = 700247520. Its totient is φ = 80668224.

The previous prime is 276990229. The next prime is 276990257. The reversal of 276990246 is 642099672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252876 + ... + 253968.

It is an arithmetic number, because the mean of its divisors is an integer number (7294245).

Almost surely, 2^276990246 is an apocalyptic number.

276990246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 276990246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350123760).

276990246 is an abundant number, since it is smaller than the sum of its proper divisors (423257274).

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

276990246 is a wasteful number, since it uses less digits than its factorization.

276990246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 276990246 is about 16643.0239439833. The cubic root of 276990246 is about 651.8607400145.

The spelling of 276990246 in words is "two hundred seventy-six million, nine hundred ninety thousand, two hundred forty-six".