1894189374 has 192 divisors, whose sum is σ = 5419814400. Its totient is φ = 491520960.

The previous prime is 1894189369. The next prime is 1894189483. The reversal of 1894189374 is 4739814981.

1894189374 is a `hidden beast` number, since 1 + 8 + 94 + 189 + 374 = 666.

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 1894189374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1833162 + ... + 1834194.

It is an arithmetic number, because the mean of its divisors is an integer number (28228200).

Almost surely, 2^1894189374 is an apocalyptic number.

1894189374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1894189374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2709907200).

1894189374 is an abundant number, since it is smaller than the sum of its proper divisors (3525625026).

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

1894189374 is a wasteful number, since it uses less digits than its factorization.

1894189374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1056 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 1894189374 is about 43522.2859463976. The cubic root of 1894189374 is about 1237.2984398996.

The spelling of 1894189374 in words is "one billion, eight hundred ninety-four million, one hundred eighty-nine thousand, three hundred seventy-four".