400276276 has 12 divisors (see below), whose sum is σ = 717568740. Its totient is φ = 195256640.

The previous prime is 400276273. The next prime is 400276297. The reversal of 400276276 is 672672004.

It can be written as a sum of positive squares in 2 ways, for example, as 200788900 + 199487376 = 14170^2 + 14124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400276273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220191 + ... + 1220518.

It is an arithmetic number, because the mean of its divisors is an integer number (59797395).

Almost surely, 2^400276276 is an apocalyptic number.

It is an amenable number.

400276276 is a deficient number, since it is larger than the sum of its proper divisors (317292464).

400276276 is a wasteful number, since it uses less digits than its factorization.

400276276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440754 (or 2440752 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 400276276 is about 20006.9057077800. The cubic root of 400276276 is about 736.9758956024.

It can be divided in two parts, 400 and 276276, that added together give a square (276676 = 526²).

The spelling of 400276276 in words is "four hundred million, two hundred seventy-six thousand, two hundred seventy-six".