2045387 has 4 divisors (see below), whose sum is σ = 2073480. Its totient is φ = 2017296.

The previous prime is 2045377. The next prime is 2045437. The reversal of 2045387 is 7835402.

It is a happy number.

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 2045387 - 2⁴ = 2045371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045317) 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, 13937 + ... + 14082.

It is an arithmetic number, because the mean of its divisors is an integer number (518370).

2^2045387 is an apocalyptic number.

2045387 is a deficient number, since it is larger than the sum of its proper divisors (28093).

2045387 is an equidigital number, since it uses as much as digits as its factorization.

2045387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28092.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2045387 is about 1430.1702695833. The cubic root of 2045387 is about 126.9380523311.

The spelling of 2045387 in words is "two million, forty-five thousand, three hundred eighty-seven".