4013642668 has 24 divisors (see below), whose sum is σ = 8068888352. Its totient is φ = 1711217664.

The previous prime is 4013642657. The next prime is 4013642713. The reversal of 4013642668 is 8662463104.

It is a super-2 number, since 2×4013642668² = 32218654932780316448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4013642668.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365955 + ... + 376762.

Almost surely, 2^4013642668 is an apocalyptic number.

It is an amenable number.

4013642668 is an abundant number, since it is smaller than the sum of its proper divisors (4055245684).

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

4013642668 is a wasteful number, since it uses less digits than its factorization.

4013642668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742921 (or 742919 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 4013642668 is about 63353.3161562992. The cubic root of 4013642668 is about 1589.2037028994.

The spelling of 4013642668 in words is "four billion, thirteen million, six hundred forty-two thousand, six hundred sixty-eight".