1782912045 has 16 divisors (see below), whose sum is σ = 2976688512. Its totient is φ = 909543360.

The previous prime is 1782912041. The next prime is 1782912071. The reversal of 1782912045 is 5402192871.

It is not a de Polignac number, because 1782912045 - 2² = 1782912041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1782911994 and 1782912012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1782912041) 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 15 ways as a sum of consecutive naturals, for example, 2583586 + ... + 2584275.

It is an arithmetic number, because the mean of its divisors is an integer number (186043032).

Almost surely, 2^1782912045 is an apocalyptic number.

1782912045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1782912045 is a deficient number, since it is larger than the sum of its proper divisors (1193776467).

1782912045 is a wasteful number, since it uses less digits than its factorization.

1782912045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167892.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1782912045 is about 42224.5431591628. The cubic root of 1782912045 is about 1212.5788055203.

The spelling of 1782912045 in words is "one billion, seven hundred eighty-two million, nine hundred twelve thousand, forty-five".