618940782 has 24 divisors (see below), whose sum is σ = 1341836496. Its totient is φ = 206190816.

The previous prime is 618940759. The next prime is 618940783. The reversal of 618940782 is 287049816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618940783) 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, 23938 + ... + 42554.

It is an arithmetic number, because the mean of its divisors is an integer number (55909854).

Almost surely, 2^618940782 is an apocalyptic number.

618940782 is an abundant number, since it is smaller than the sum of its proper divisors (722895714).

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

618940782 is a wasteful number, since it uses less digits than its factorization.

618940782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20472 (or 20469 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 618940782 is about 24878.5204945953. The cubic root of 618940782 is about 852.2160316434.

It can be divided in two parts, 6189 and 40782, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 618940782 in words is "six hundred eighteen million, nine hundred forty thousand, seven hundred eighty-two".