4257668408 has 48 divisors (see below), whose sum is σ = 9606745800. Its totient is φ = 1761789120.

The previous prime is 4257668357. The next prime is 4257668413. The reversal of 4257668408 is 8048667524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175898 + ... + 198633.

Almost surely, 2^4257668408 is an apocalyptic number.

It is an amenable number.

4257668408 is an abundant number, since it is smaller than the sum of its proper divisors (5349077392).

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

4257668408 is a wasteful number, since it uses less digits than its factorization.

4257668408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374580 (or 374569 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 50.

The square root of 4257668408 is about 65250.8115505087. The cubic root of 4257668408 is about 1620.7795374445.

The spelling of 4257668408 in words is "four billion, two hundred fifty-seven million, six hundred sixty-eight thousand, four hundred eight".