1674689868 has 144 divisors (see below), whose sum is σ = 4614529920. Its totient is φ = 510354432.

The previous prime is 1674689837. The next prime is 1674689899. The reversal of 1674689868 is 8689864761.

1674689868 is a `hidden beast` number, since 167 + 468 + 9 + 8 + 6 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1674689837) and next prime (1674689899).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

Its product of digits (27869184) is a multiple of the sum of its prime factors (756).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2852671 + ... + 2853257.

Almost surely, 2^1674689868 is an apocalyptic number.

1674689868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1674689868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2307264960).

1674689868 is an abundant number, since it is smaller than the sum of its proper divisors (2939840052).

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

1674689868 is a wasteful number, since it uses less digits than its factorization.

1674689868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 751 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The square root of 1674689868 is about 40922.9748185539. The cubic root of 1674689868 is about 1187.5305681956.

The spelling of 1674689868 in words is "one billion, six hundred seventy-four million, six hundred eighty-nine thousand, eight hundred sixty-eight".