1780949084 has 12 divisors (see below), whose sum is σ = 3135782664. Its totient is φ = 885011184.

The previous prime is 1780949081. The next prime is 1780949117. The reversal of 1780949084 is 4809490871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1780949081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365107 + ... + 1366410.

It is an arithmetic number, because the mean of its divisors is an integer number (261315222).

Almost surely, 2^1780949084 is an apocalyptic number.

It is an amenable number.

1780949084 is a deficient number, since it is larger than the sum of its proper divisors (1354833580).

1780949084 is a wasteful number, since it uses less digits than its factorization.

1780949084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731684 (or 2731682 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1780949084 is about 42201.2924446634. The cubic root of 1780949084 is about 1212.1336313861.

The spelling of 1780949084 in words is "one billion, seven hundred eighty million, nine hundred forty-nine thousand, eighty-four".