4509834390 has 24 divisors (see below), whose sum is σ = 11725569648. Its totient is φ = 1202622480.

The previous prime is 4509834349. The next prime is 4509834397. The reversal of 4509834390 is 934389054.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4509834397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25054546 + ... + 25054725.

It is an arithmetic number, because the mean of its divisors is an integer number (488565402).

Almost surely, 2^4509834390 is an apocalyptic number.

4509834390 is an abundant number, since it is smaller than the sum of its proper divisors (7215735258).

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

4509834390 is a wasteful number, since it uses less digits than its factorization.

4509834390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50109284 (or 50109281 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 4509834390 is about 67155.3005354008. The cubic root of 4509834390 is about 1652.1654323617.

The spelling of 4509834390 in words is "four billion, five hundred nine million, eight hundred thirty-four thousand, three hundred ninety".