4001657248 has 24 divisors (see below), whose sum is σ = 7947989028. Its totient is φ = 1983120384.

The previous prime is 4001657207. The next prime is 4001657287. The reversal of 4001657248 is 8427561004.

It can be written as a sum of positive squares in 2 ways, for example, as 2930273424 + 1071383824 = 54132^2 + 32732^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549711 + ... + 556942.

Almost surely, 2^4001657248 is an apocalyptic number.

It is an amenable number.

4001657248 is a deficient number, since it is larger than the sum of its proper divisors (3946331780).

4001657248 is a wasteful number, since it uses less digits than its factorization.

4001657248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106776 (or 1106768 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 4001657248 is about 63258.6535424206. The cubic root of 4001657248 is about 1587.6202481340.

The spelling of 4001657248 in words is "four billion, one million, six hundred fifty-seven thousand, two hundred forty-eight".