2045782 has 4 divisors (see below), whose sum is σ = 3068676. Its totient is φ = 1022890.

The previous prime is 2045773. The next prime is 2045789. The reversal of 2045782 is 2875402.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2045782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511444 + ... + 511447.

It is an arithmetic number, because the mean of its divisors is an integer number (767169).

2^2045782 is an apocalyptic number.

2045782 is a deficient number, since it is larger than the sum of its proper divisors (1022894).

2045782 is a wasteful number, since it uses less digits than its factorization.

2045782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022893.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2045782 is about 1430.3083583619. The cubic root of 2045782 is about 126.9462231244.

The spelling of 2045782 in words is "two million, forty-five thousand, seven hundred eighty-two".