276982240 has 96 divisors (see below), whose sum is σ = 676045440. Its totient is φ = 107188224.

The previous prime is 276982231. The next prime is 276982243. The reversal of 276982240 is 42289672.

It is a super-2 number, since 2×276982240² = 153438322550835200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 276982193 and 276982202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276982243) 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, 754537 + ... + 754903.

It is an arithmetic number, because the mean of its divisors is an integer number (7042140).

Almost surely, 2^276982240 is an apocalyptic number.

276982240 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 276982240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338022720).

276982240 is an abundant number, since it is smaller than the sum of its proper divisors (399063200).

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

276982240 is a wasteful number, since it uses less digits than its factorization.

276982240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 276982240 is about 16642.7834210507. The cubic root of 276982240 is about 651.8544595919.

The spelling of 276982240 in words is "two hundred seventy-six million, nine hundred eighty-two thousand, two hundred forty".