4000628264 has 8 divisors (see below), whose sum is σ = 7501178010. Its totient is φ = 2000314128.

The previous prime is 4000628237. The next prime is 4000628273. The reversal of 4000628264 is 4628260004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2356325764 + 1644302500 = 48542^2 + 40550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 4000628264.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250039259 + ... + 250039274.

Almost surely, 2^4000628264 is an apocalyptic number.

It is an amenable number.

4000628264 is a deficient number, since it is larger than the sum of its proper divisors (3500549746).

4000628264 is a wasteful number, since it uses less digits than its factorization.

4000628264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500078539 (or 500078535 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 4000628264 is about 63250.5198713813. The cubic root of 4000628264 is about 1587.4841565286.

Adding to 4000628264 its reverse (4628260004), we get a palindrome (8628888268).

The spelling of 4000628264 in words is "four billion, six hundred twenty-eight thousand, two hundred sixty-four".