45781756 has 24 divisors (see below), whose sum is σ = 82494720. Its totient is φ = 22218672.

The previous prime is 45781751. The next prime is 45781763. The reversal of 45781756 is 65718754.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45781751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30045 + ... + 31531.

It is an arithmetic number, because the mean of its divisors is an integer number (3437280).

Almost surely, 2^45781756 is an apocalyptic number.

It is an amenable number.

45781756 is a deficient number, since it is larger than the sum of its proper divisors (36712964).

45781756 is a wasteful number, since it uses less digits than its factorization.

45781756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1711 counting only the distinct ones).

The product of its digits is 235200, while the sum is 43.

The square root of 45781756 is about 6766.2216930869. The cubic root of 45781756 is about 357.7372373539.

The spelling of 45781756 in words is "forty-five million, seven hundred eighty-one thousand, seven hundred fifty-six".