276230988 has 36 divisors (see below), whose sum is σ = 761728968.
Its totient is φ = 83706240.
The previous prime is 276230963. The next prime is 276230993. The reversal of 276230988 is 889032672.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×2762309882 = 152607117462912288, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348381 + ... + 349172.
It is an arithmetic number, because the mean of its divisors is an integer number (21159138).
Almost surely, 2276230988 is an apocalyptic number.
It is an amenable number.
276230988 is an abundant number, since it is smaller than the sum of its proper divisors (485497980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
276230988 is a wasteful number, since it uses less digits than its factorization.
276230988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 697574 (or 697569 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 45.
The square root of 276230988 is about 16620.1981937641.
The cubic root of 276230988 is about 651.2645897928.
The spelling of 276230988 in words is "two hundred seventy-six million, two hundred thirty thousand, nine hundred eighty-eight".