4245599890 has 64 divisors (see below), whose sum is σ = 9265446144. Its totient is φ = 1367359488.

The previous prime is 4245599879. The next prime is 4245599899. The reversal of 4245599890 is 989955424.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4245599899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 666802 + ... + 673138.

It is an arithmetic number, because the mean of its divisors is an integer number (144772596).

Almost surely, 2^4245599890 is an apocalyptic number.

4245599890 is an abundant number, since it is smaller than the sum of its proper divisors (5019846254).

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

4245599890 is a wasteful number, since it uses less digits than its factorization.

4245599890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The square root of 4245599890 is about 65158.2680095166. The cubic root of 4245599890 is about 1619.2467017961.

The spelling of 4245599890 in words is "four billion, two hundred forty-five million, five hundred ninety-nine thousand, eight hundred ninety".