2045409590 has 32 divisors (see below), whose sum is σ = 4209862464. Its totient is φ = 700922880.

The previous prime is 2045409563. The next prime is 2045409601. The reversal of 2045409590 is 959045402.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154430 + ... + 167150.

It is an arithmetic number, because the mean of its divisors is an integer number (131558202).

Almost surely, 2^2045409590 is an apocalyptic number.

2045409590 is an abundant number, since it is smaller than the sum of its proper divisors (2164452874).

2045409590 is a wasteful number, since it uses less digits than its factorization.

2045409590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15032.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 2045409590 is about 45226.2046826837. The cubic root of 2045409590 is about 1269.3851964610.

The spelling of 2045409590 in words is "two billion, forty-five million, four hundred nine thousand, five hundred ninety".