1894313792 has 56 divisors (see below), whose sum is σ = 4354958016. Its totient is φ = 800713728.

The previous prime is 1894313789. The next prime is 1894313809. The reversal of 1894313792 is 2973134981.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1894313792² = 7176849485122838528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3743 + ... + 61665.

Almost surely, 2^1894313792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1894313792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177479008).

1894313792 is an abundant number, since it is smaller than the sum of its proper divisors (2460644224).

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

1894313792 is an equidigital number, since it uses as much as digits as its factorization.

1894313792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58015 (or 58005 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 1894313792 is about 43523.7152825905. The cubic root of 1894313792 is about 1237.3255295576.

The spelling of 1894313792 in words is "one billion, eight hundred ninety-four million, three hundred thirteen thousand, seven hundred ninety-two".