4393887690 has 16 divisors (see below), whose sum is σ = 10545330528. Its totient is φ = 1171703376.

The previous prime is 4393887689. The next prime is 4393887709. The reversal of 4393887690 is 967883934.

It is a happy number.

It is a super-2 number, since 2×4393887690² = 38612498064667072200, 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 4393887690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73231432 + ... + 73231491.

It is an arithmetic number, because the mean of its divisors is an integer number (659083158).

Almost surely, 2^4393887690 is an apocalyptic number.

4393887690 is an abundant number, since it is smaller than the sum of its proper divisors (6151442838).

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

4393887690 is a wasteful number, since it uses less digits than its factorization.

4393887690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146462933.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The square root of 4393887690 is about 66286.4065250184. The cubic root of 4393887690 is about 1637.8834099384.

The spelling of 4393887690 in words is "four billion, three hundred ninety-three million, eight hundred eighty-seven thousand, six hundred ninety".