782942940 has 144 divisors (see below), whose sum is σ = 2627028768. Its totient is φ = 187494912.

The previous prime is 782942933. The next prime is 782942947. The reversal of 782942940 is 49249287.

782942940 is a `hidden beast` number, since 78 + 294 + 294 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (782942933) and next prime (782942947).

It is a super-2 number, since 2×782942940² = 1225999294591687200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 (782942947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82059 + ... + 91101.

Almost surely, 2^782942940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 782942940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313514384).

782942940 is an abundant number, since it is smaller than the sum of its proper divisors (1844085828).

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

782942940 is a wasteful number, since it uses less digits than its factorization.

782942940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9108 (or 9103 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 782942940 is about 27981.1175616700. The cubic root of 782942940 is about 921.6726580944.

The spelling of 782942940 in words is "seven hundred eighty-two million, nine hundred forty-two thousand, nine hundred forty".