4349809782 has 16 divisors (see below), whose sum is σ = 9666244080. Its totient is φ = 1449936576.

The previous prime is 4349809769. The next prime is 4349809787. The reversal of 4349809782 is 2879089434.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 80552033 = 4349809782 / (4 + 3 + 4 + 9 + 8 + 0 + 9 + 7 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4349809787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40275963 + ... + 40276070.

It is an arithmetic number, because the mean of its divisors is an integer number (604140255).

Almost surely, 2^4349809782 is an apocalyptic number.

4349809782 is an abundant number, since it is smaller than the sum of its proper divisors (5316434298).

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

4349809782 is a wasteful number, since it uses less digits than its factorization.

4349809782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80552044 (or 80552038 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 4349809782 is about 65953.0877366632. The cubic root of 4349809782 is about 1632.3881064967.

The spelling of 4349809782 in words is "four billion, three hundred forty-nine million, eight hundred nine thousand, seven hundred eighty-two".