4013620866 has 12 divisors (see below), whose sum is σ = 8696178582. Its totient is φ = 1337873616.

The previous prime is 4013620829. The next prime is 4013620867. The reversal of 4013620866 is 6680263104.

It can be written as a sum of positive squares in only one way, i.e., 2642474025 + 1371146841 = 51405^2 + 37029^2 .

It is a super-2 number, since 2×4013620866² = 32218304911981179912, 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 4013620866.

It is not an unprimeable number, because it can be changed into a prime (4013620867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111489451 + ... + 111489486.

Almost surely, 2^4013620866 is an apocalyptic number.

4013620866 is an abundant number, since it is smaller than the sum of its proper divisors (4682557716).

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

4013620866 is a wasteful number, since it uses less digits than its factorization.

4013620866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222978945 (or 222978942 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 4013620866 is about 63353.1440893031. The cubic root of 4013620866 is about 1589.2008253902.

The spelling of 4013620866 in words is "four billion, thirteen million, six hundred twenty thousand, eight hundred sixty-six".