276275920 has 40 divisors (see below), whose sum is σ = 644664096. Its totient is φ = 110110848.

The previous prime is 276275911. The next prime is 276275921. The reversal of 276275920 is 29572672.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276275921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16539 + ... + 28741.

Almost surely, 2^276275920 is an apocalyptic number.

276275920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276275920 is an abundant number, since it is smaller than the sum of its proper divisors (368388176).

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

276275920 is a wasteful number, since it uses less digits than its factorization.

276275920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12499 (or 12493 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 276275920 is about 16621.5498675665. The cubic root of 276275920 is about 651.2998996546.

The spelling of 276275920 in words is "two hundred seventy-six million, two hundred seventy-five thousand, nine hundred twenty".