2045191630 has 16 divisors (see below), whose sum is σ = 3897894960. Its totient is φ = 769954432.

The previous prime is 2045191601. The next prime is 2045191657. The reversal of 2045191630 is 361915402.

It is a junction number, because it is equal to n+sod(n) for n = 2045191592 and 2045191601.

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 7 ways as a sum of consecutive naturals, for example, 6015100 + ... + 6015439.

It is an arithmetic number, because the mean of its divisors is an integer number (243618435).

Almost surely, 2^2045191630 is an apocalyptic number.

2045191630 is a deficient number, since it is larger than the sum of its proper divisors (1852703330).

2045191630 is a wasteful number, since it uses less digits than its factorization.

2045191630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12030563.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2045191630 is about 45223.7949535419. The cubic root of 2045191630 is about 1269.3401060584.

The spelling of 2045191630 in words is "two billion, forty-five million, one hundred ninety-one thousand, six hundred thirty".