1906769442 has 16 divisors (see below), whose sum is σ = 3831615072. Its totient is φ = 632577120.

The previous prime is 1906769413. The next prime is 1906769443. The reversal of 1906769442 is 2449676091.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1906769391 and 1906769400.

It is not an unprimeable number, because it can be changed into a prime (1906769443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 751803 + ... + 754334.

It is an arithmetic number, because the mean of its divisors is an integer number (239475942).

Almost surely, 2^1906769442 is an apocalyptic number.

1906769442 is an abundant number, since it is smaller than the sum of its proper divisors (1924845630).

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

1906769442 is a wasteful number, since it uses less digits than its factorization.

1906769442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506353.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 1906769442 is about 43666.5712187252. The cubic root of 1906769442 is about 1240.0315292885.

The spelling of 1906769442 in words is "one billion, nine hundred six million, seven hundred sixty-nine thousand, four hundred forty-two".