1806676974 has 80 divisors (see below), whose sum is σ = 4203191520. Its totient is φ = 579337920.

The previous prime is 1806676967. The next prime is 1806676987. The reversal of 1806676974 is 4796766081.

It is a happy number.

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 1806676974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1751839 + ... + 1752869.

It is an arithmetic number, because the mean of its divisors is an integer number (52539894).

Almost surely, 2^1806676974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1806676974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2101595760).

1806676974 is an abundant number, since it is smaller than the sum of its proper divisors (2396514546).

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

1806676974 is a wasteful number, since it uses less digits than its factorization.

1806676974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447 (or 1438 counting only the distinct ones).

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

The square root of 1806676974 is about 42505.0229267083. The cubic root of 1806676974 is about 1217.9426433230.

The spelling of 1806676974 in words is "one billion, eight hundred six million, six hundred seventy-six thousand, nine hundred seventy-four".