276390140 has 24 divisors (see below), whose sum is σ = 625067520. Its totient is φ = 102051648.

The previous prime is 276390113. The next prime is 276390157. The reversal of 276390140 is 41093672.

It is a junction number, because it is equal to n+sod(n) for n = 276390097 and 276390106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531260 + ... + 531779.

It is an arithmetic number, because the mean of its divisors is an integer number (26044480).

Almost surely, 2^276390140 is an apocalyptic number.

276390140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276390140 is an abundant number, since it is smaller than the sum of its proper divisors (348677380).

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

276390140 is a wasteful number, since it uses less digits than its factorization.

276390140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063061 (or 1063059 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 276390140 is about 16624.9854135274. The cubic root of 276390140 is about 651.3896423354.

The spelling of 276390140 in words is "two hundred seventy-six million, three hundred ninety thousand, one hundred forty".