2029209945 has 32 divisors (see below), whose sum is σ = 3744618240. Its totient is φ = 919123200.

The previous prime is 2029209859. The next prime is 2029209967. The reversal of 2029209945 is 5499029202.

It is not a de Polignac number, because 2029209945 - 2¹¹ = 2029207897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2029209897 and 2029209906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77206 + ... + 100095.

It is an arithmetic number, because the mean of its divisors is an integer number (117019320).

Almost surely, 2^2029209945 is an apocalyptic number.

It is an amenable number.

2029209945 is a deficient number, since it is larger than the sum of its proper divisors (1715408295).

2029209945 is a wasteful number, since it uses less digits than its factorization.

2029209945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177425.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 2029209945 is about 45046.7528796472. The cubic root of 2029209945 is about 1266.0251330835.

The spelling of 2029209945 in words is "two billion, twenty-nine million, two hundred nine thousand, nine hundred forty-five".