2066405442 has 32 divisors (see below), whose sum is σ = 4216872960. Its totient is φ = 674911440.

The previous prime is 2066405413. The next prime is 2066405461. The reversal of 2066405442 is 2445046602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54559 + ... + 84317.

It is an arithmetic number, because the mean of its divisors is an integer number (131777280).

Almost surely, 2^2066405442 is an apocalyptic number.

2066405442 is an abundant number, since it is smaller than the sum of its proper divisors (2150467518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2066405442 is a wasteful number, since it uses less digits than its factorization.

2066405442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29998.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 2066405442 is about 45457.7324775445. The cubic root of 2066405442 is about 1273.7137749366.

The spelling of 2066405442 in words is "two billion, sixty-six million, four hundred five thousand, four hundred forty-two".