1906687674 has 40 divisors (see below), whose sum is σ = 4410223488. Its totient is φ = 615058920.

The previous prime is 1906687637. The next prime is 1906687711. The reversal of 1906687674 is 4767866091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1906687637) and next prime (1906687711).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1906687674.

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 19 ways as a sum of consecutive naturals, for example, 184812 + ... + 194855.

Almost surely, 2^1906687674 is an apocalyptic number.

1906687674 is an abundant number, since it is smaller than the sum of its proper divisors (2503535814).

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

1906687674 is a wasteful number, since it uses less digits than its factorization.

1906687674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379712 (or 379703 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 1906687674 is about 43665.6349318317. The cubic root of 1906687674 is about 1240.0138036098.

The spelling of 1906687674 in words is "one billion, nine hundred six million, six hundred eighty-seven thousand, six hundred seventy-four".