784240002 has 128 divisors (see below), whose sum is σ = 2189376000. Its totient is φ = 206769024.

The previous prime is 784239997. The next prime is 784240003. The reversal of 784240002 is 200042487.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (784240003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 239158 + ... + 242414.

It is an arithmetic number, because the mean of its divisors is an integer number (17104500).

Almost surely, 2^784240002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 784240002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094688000).

784240002 is an abundant number, since it is smaller than the sum of its proper divisors (1405135998).

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

784240002 is a wasteful number, since it uses less digits than its factorization.

784240002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302 (or 3282 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 784240002 is about 28004.2854220564. The cubic root of 784240002 is about 922.1813401327.

Adding to 784240002 its reverse (200042487), we get a palindrome (984282489).

The spelling of 784240002 in words is "seven hundred eighty-four million, two hundred forty thousand, two".