2045427 has 4 divisors (see below), whose sum is σ = 2727240. Its totient is φ = 1363616.

The previous prime is 2045377. The next prime is 2045437. The reversal of 2045427 is 7245402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045427 - 2⁶ = 2045363 is a prime.

It is a super-2 number, since 2×2045427² = 8367543224658, which contains 22 as substring.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 2045397 and 2045406.

It is not an unprimeable number, because it can be changed into a prime (2045437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340902 + ... + 340907.

It is an arithmetic number, because the mean of its divisors is an integer number (681810).

2^2045427 is an apocalyptic number.

2045427 is a deficient number, since it is larger than the sum of its proper divisors (681813).

2045427 is an equidigital number, since it uses as much as digits as its factorization.

2045427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681812.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 2045427 is about 1430.1842538638. The cubic root of 2045427 is about 126.9388798011.

The spelling of 2045427 in words is "two million, forty-five thousand, four hundred twenty-seven".