276980040 has 128 divisors (see below), whose sum is σ = 953164800. Its totient is φ = 71470080.

The previous prime is 276979999. The next prime is 276980057. The reversal of 276980040 is 40089672.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 276979977 and 276980004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29344 + ... + 37616.

It is an arithmetic number, because the mean of its divisors is an integer number (7446600).

Almost surely, 2^276980040 is an apocalyptic number.

276980040 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 276980040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476582400).

276980040 is an abundant number, since it is smaller than the sum of its proper divisors (676184760).

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

276980040 is a wasteful number, since it uses less digits than its factorization.

276980040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324 (or 8314 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 276980040 is about 16642.7173262061. The cubic root of 276980040 is about 651.8527337489.

The spelling of 276980040 in words is "two hundred seventy-six million, nine hundred eighty thousand, forty".