276624140 has 48 divisors (see below), whose sum is σ = 638934912. Its totient is φ = 99960576.

The previous prime is 276624133. The next prime is 276624199. The reversal of 276624140 is 41426672.

It is a junction number, because it is equal to n+sod(n) for n = 276624097 and 276624106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 902 + ... + 23538.

It is an arithmetic number, because the mean of its divisors is an integer number (13311144).

Almost surely, 2^276624140 is an apocalyptic number.

276624140 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 276624140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319467456).

276624140 is an abundant number, since it is smaller than the sum of its proper divisors (362310772).

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

276624140 is a wasteful number, since it uses less digits than its factorization.

276624140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22706 (or 22704 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 276624140 is about 16632.0215247576. The cubic root of 276624140 is about 651.5734190078.

The spelling of 276624140 in words is "two hundred seventy-six million, six hundred twenty-four thousand, one hundred forty".