276032240 has 80 divisors (see below), whose sum is σ = 704392416. Its totient is φ = 99763200.

The previous prime is 276032231. The next prime is 276032243. The reversal of 276032240 is 42230672.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276032243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158414 + ... + 160146.

Almost surely, 2^276032240 is an apocalyptic number.

276032240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352196208).

276032240 is an abundant number, since it is smaller than the sum of its proper divisors (428360176).

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

276032240 is a wasteful number, since it uses less digits than its factorization.

276032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 276032240 is about 16614.2180074778. The cubic root of 276032240 is about 651.1083575136.

The spelling of 276032240 in words is "two hundred seventy-six million, thirty-two thousand, two hundred forty".