1906769445 has 16 divisors (see below), whose sum is σ = 3486664320. Its totient is φ = 871665984.

The previous prime is 1906769443. The next prime is 1906769467. The reversal of 1906769445 is 5449676091.

It is not a de Polignac number, because 1906769445 - 2¹ = 1906769443 is a prime.

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9079750 + ... + 9079959.

It is an arithmetic number, because the mean of its divisors is an integer number (217916520).

Almost surely, 2^1906769445 is an apocalyptic number.

1906769445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1906769445 is a deficient number, since it is larger than the sum of its proper divisors (1579894875).

1906769445 is a wasteful number, since it uses less digits than its factorization.

1906769445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18159724.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 1906769445 is about 43666.5712530764. The cubic root of 1906769445 is about 1240.0315299388.

The spelling of 1906769445 in words is "one billion, nine hundred six million, seven hundred sixty-nine thousand, four hundred forty-five".